Argument

Born This Way Objection Defeater

Intro

One of the most common arguments in the culture is: "Being gay isn't a choice. People are born this way, it's genetic, and animals do it too, so it's natural. Since it's inborn and natural, there's nothing wrong with acting on it."

The argument feels powerful because it bundles three separate claims into one slogan: a scientific claim (it's genetic), a claim about nature (animals do it), and a moral conclusion (so it's permissible). The way to answer it is to unbundle it, because each piece fails, and the strongest response does not even need to win the science.

Three moves take it apart. First, the genetics do not actually show "born this way" in the strong sense; even the largest studies and the psychological establishment deny strict genetic determinism. Second, and decisively, even if orientation were entirely inborn, that would settle nothing morally, because you cannot get from "this is how someone is born" to "this is therefore right." That is the is-ought gap, and it is the heart of the whole reply. Third, "animals do it" is a textbook appeal-to-nature fallacy that, taken seriously, would license a long list of things no one accepts.

There is also a tell worth watching for. When the inborn-and-natural argument is pressed with a hard test case, the person almost always retreats to a different standard, consent, and that retreat quietly admits that "born this way" was never really the moral criterion in the first place. That is where the real argument is.

A word on tone before the logic: the case below is polemical about the argument, not about people. Every person bears the image of God and is loved by him. The point is to test a claim, not to demean a human being.

In full

Defeater for the objection: "Sexual orientation is not chosen; it is genetically and biologically determined ('born this way'). Same-sex behavior also occurs across many animal species, so it is part of nature. Because it is both inborn and natural, acting on same-sex attraction is morally permissible, and the traditional Christian ethic that restricts sex to male-female marriage is arbitrary bigotry."

The objection is rhetorically strong because it fuses an empathy appeal (people did not choose their desires, so condemning them is cruel) with what sounds like science and what sounds like nature. But it is a chain of three separable claims, and the moral conclusion does not follow even if the first two were granted.

The defeat structure is five-pronged. (1) The science does not show strict determinism: the largest genome study (Ganna et al. 2019) found that measured genetics explains only a modest fraction of the variance and that individual behavior cannot be predicted from the genome, and identical-twin concordance is far below what genetic destiny would require. (2) The is-ought gap (Hume) is the decisive move: "innate" is a descriptive fact, "therefore permissible" is a normative claim, and no descriptive fact about origin entails a moral conclusion; treating "natural/inborn" as "good" is the appeal-to-nature fallacy (Is-Ought Fallacy). (3) Reductio from other heritable dispositions: alcoholism, aggression, and other traits have real heritable components without anyone concluding the associated behavior is thereby right, and the Christian doctrine of original sin makes inborn disordered desire a prediction, not an excuse. (4) "Animals do it" is an appeal to nature that also occurs alongside animal infanticide, forced copulation, cannibalism, and incest, so the principle, if valid, licenses those too; and humans are moral agents, not governed by animal behavior. (5) The consent-pivot judo: when the objector, pressed on a hard case, switches from "inborn/natural" to "consenting adults," he concedes that innateness was never his real criterion, and the debate properly moves to whether a consent-only sexual ethic can be grounded at all, which on naturalism it cannot (Moral Argument).

The burden-rebalancing observation: the slogan presents "born this way" as though the moral conclusion were obvious once the biology is granted. In fact the biology is contested and irrelevant to the moral question, and the person deploying the argument does not himself believe that "inborn plus natural" licenses behavior in general (he would not accept it for aggression, or for animal infanticide). So he is applying a principle selectively that he does not hold universally, which is the mark of a rationalization rather than a reason.

Grammar and hermeneutics

Because the objection ends by calling the biblical sexual ethic "arbitrary bigotry," it is worth showing that the ethic is defeated as arbitrary only by misreading the texts; on a straight grammatical-historical reading it is a coherent, universal, creation-grounded standard, not an inexplicable prejudice.

1. The ethic is grounded in a creation design, not an arbitrary rule. Genesis 1:27 and 2:24 present male-and-female and the one-flesh union as the created pattern, and Jesus grounds his own sexual ethic there: "Have you not read that He who created them from the beginning made them male and female," and "the two shall become one flesh" (Matthew 19:4-6), citing Genesis as the norm. The grammar is creational and teleological (sex is for the one-flesh, covenantal, procreative union), so the restriction is not a bare taboo but follows from a stated design. An objection that the rule is "arbitrary" has to ignore the design rationale the texts give.

2. Romans 1:26-27 argues from nature (physis), not from mere custom. Paul calls same-sex acts para physin ("contrary to nature"), where physis denotes the created order of male-female complementarity, the same order Genesis states, not local convention. The passage is descriptive of a disordering (desires "exchanged," metēllaxan), and it is embedded in an argument about humanity in general, so it cannot be read as a narrow attack on one group. The "born this way" appeal actually agrees with Paul's premise that the desire is deep-seated and unchosen; where it diverges is the is-ought inference, which is a logical point (below), not an exegetical one.

3. The vice lists are act-focused, and they are universal. 1 Corinthians 6:9-11 lists same-sex acts (arsenokoitai, a compound Paul coins from the Leviticus 18:22 and 20:13 Septuagint wording, "male" plus "bed") alongside greed, drunkenness, theft, and reviling, then says "and such were some of you," framing all of it as behavior from which people are washed and changed. The grammar is behavioral and evenhanded: it targets acts across a broad catalog of human sin, not a singled-out identity, which is exactly why the "arbitrary bigotry" charge misreads it.

4. Orientation, desire, and act are distinguished grammatically. Scripture consistently locates culpability at the level of the will and the act, while treating disordered desire as the common human condition (Psalm 51:5, "in sin my mother conceived me"; Ephesians 2:3, "by nature children of wrath"; James 1:14-15, where desire is distinguished from the sin it "gives birth to"). This is the textual basis for the orientation-desire-act distinction, and it dissolves the objection's central emotional premise: the Bible already grants that the desire is unchosen and deep, and locates the moral question elsewhere.

The upshot: on the plain grammar, the ethic is a universal, creation-grounded, act-focused standard that already concedes the unchosen depth of desire. The remaining dispute is not exegetical but logical, whether "inborn" implies "permissible", and that is settled below.

Cheatsheet

The 30-second reply:

Three claims are packed into "born this way," and I can grant the first two and still win. First, the genetics don't show it: the biggest study says you can't predict anyone's behavior from their genome, and identical twins are far from 100% concordant, so it's a factor, not a destiny. Second, and this is the key, even if it were 100% inborn, that proves nothing morally, because "I was born with a desire" never tells you whether acting on it is right. That's the is-ought gap. Alcoholism is heritable too; that doesn't make drunkenness good. Third, "animals do it" is an appeal to nature, and animals also commit infanticide and forced copulation, so that argument proves too much. And notice: the moment I bring up a hard case and you say "but that's not consenting adults," you've just admitted that consent, not being born that way, is your real standard. So let's talk about consent, and where you ground it.

The 5 fast facts:

1. The genetics do not show determinism. Ganna et al. 2019 (~477,000 people): measured genetics explains only 8 to 25% of the variance, and "it is impossible to predict an individual's sexual behavior from their genome." No "gay gene."
2. Identical twins are not concordant enough for genetic destiny. If it were purely genetic, identical-twin concordance would approach 100%. Population registries put heritability around 30 to 40% for men, less for women, with the rest non-genetic.
3. The is-ought gap is decisive. "Inborn" is a fact about origin; "permissible" is a moral claim. No fact about how someone is born entails what they may rightly do. Treating natural or inborn as good is the appeal-to-nature fallacy.
4. "Animals do it" backfires. Animals also practice infanticide, forced copulation, cannibalism, and incest. If animal behavior licenses conduct, it licenses all of that. It licenses nothing; humans are moral agents.
5. The consent retreat is a concession. When the objector switches to "consenting adults," he abandons "born this way / natural" as the criterion. Innateness was never doing the moral work. The real standard is consent, and that must be grounded, which naturalism cannot do.

The 3 strongest counter-moves:

• "Grant it's 100% inborn, now derive 'therefore permissible.'" Force the is-ought inference into the open. It cannot be made. This is the whole game.
• "Is alcoholism-genetics a moral licence?" Use a neutral heritable trait to show "inborn implies right" is a principle the objector does not actually hold.
• "You just switched to consent, so biology was never your criterion." Name the pivot. Then ask him to ground consent as the sole moral standard in a universe of atoms.

Concessions to make freely (each collects a larger one):

• Yes, orientation is generally not a simple choice, and same-sex attraction is often deep and unchosen. Concede it warmly. In exchange the objector must concede that "unchosen" does not settle the moral question, which is the whole point, and one Scripture already grants (Psalm 51:5).
• Yes, there is a real genetic contribution. Concede it. In exchange the objector must concede it is a contribution, not determinism, so "born this way" in the strong sense is not established.
• Yes, some animals display same-sex behavior. Concede it. In exchange the objector must concede that animal behavior is not a moral standard, or accept animal infanticide and forced copulation as licensed too.
• Yes, the Christian ethic calls same-sex acts sin. But it calls all sex outside male-female marriage sin, for everyone. Concede the universality, and the "singling-out / bigotry" charge collapses.

What NOT to defend:

• Do not argue that orientation is simply chosen; the science and most people's experience are against it, and the argument does not need it.
• Do not claim gay people are uniquely wicked or compare persons to pedophiles; the reductio tests a principle, not people, and conflating the two is both false and self-defeating.
• Do not rest the case on the contested genetics; win on the is-ought gap, which holds regardless of the biology.
• Do not accept the framing that the biblical ethic singles out one group; it is a universal standard on all sexual conduct.

The closing line:

"Nobody chooses their desires, and that is true of all of us, about many desires. The Bible says so before you do. The question was never whether the desire is inborn; it is whether acting on it is right, and 'I was born wanting it' has never answered that question about anything. The moment you reached for consent, you agreed. So let's talk honestly about where right and wrong come from at all, because on your worldview, I'm not sure consent can carry the weight you're putting on it."

Argument structure

Master objections to the whole argument

MO1: "Comparing being gay to alcoholism or aggression is offensive and homophobic. You're equating a loving orientation with a disease and with violence."

• The comparison is strictly logical, and it is important to state its exact scope. The point is not that same-sex attraction is like alcoholism in its moral quality, its effects, or the worth of the person; it is a claim about a single shared feature, heritability, used to test one inference. The objector's argument is "this trait is heritable, therefore acting on it is permissible." To test whether that inference is valid, you find another heritable trait and see if the inference holds; if it fails there (and no one thinks heritable alcoholism licenses drunkenness), then heritability alone never licenses behavior, and the objector needs a different argument. That is how testing a principle works. It implies nothing about the moral equivalence of the traits themselves, and saying so is not homophobic; it is basic logic. Refusing the test amounts to exempting one claim from the scrutiny every other claim receives.

MO2: "The is-ought gap cuts both ways. If you can't derive 'wrong' from 'unnatural,' then Christians can't say homosexuality is wrong from nature either. You've disarmed your own natural-law argument."

• Correct that no moral conclusion follows from bare descriptive facts alone, and the Christian case does not pretend otherwise; that is precisely why the Christian argument is not "it is unnatural, therefore wrong" as a freestanding inference. The Christian ethic derives its oughts from a normative source, God's design and command, not from raw biology, so it does not commit the is-ought fallacy. The objector's argument, by contrast, does try to derive an "ought" (permissible) from an "is" (inborn/natural) with no normative premise supplied, which is why it fails. The asymmetry is the point: a grounded ethic (design plus divine authority) can yield oughts; a naturalistic "it's inborn/natural" cannot yield oughts by itself. Far from disarming the Christian, the is-ought gap is exactly what shows the secular version of the appeal to nature to be invalid while a theistic ethic, which has a normative foundation, is not.

MO3: "Consent obviously matters, and it's not ad hoc. Harm and consent are perfectly good secular moral foundations. You're pretending consent is mysterious when it's just basic ethics."

• Consent does matter, and no one is denying that it is morally significant; the question is whether it can bear the whole weight and where it comes from. Two problems. First, consent-only cannot deliver the objector's own moral intuitions: most people still judge certain fully-consensual adult acts to be wrong or gravely unwise, which shows consent is treated as necessary but not sufficient even by those who invoke it, so it is not actually the complete criterion it is presented as. Second, and deeper, on a naturalistic worldview it is unclear why consent should generate any binding moral obligation at all: in a universe of particles and forces, a mental state of agreement is just more particles in motion, and "you ought to respect it" is exactly the kind of objective moral fact naturalism struggles to ground (Moral Argument). The Christian can affirm the real importance of consent and explain why it binds (persons bear God's image and possess dignity, so their will may not be violated). The objection assumes the value of consent while standing on a worldview that cannot underwrite it.

MO4: "Sexual orientation is far more central to identity and far less harmful than these comparisons suggest. Drunkenness hurts people; two men in love hurt no one. The disanalogy defeats your reductio."

• The harm-and-centrality point is a different argument from "born this way," and that is worth noticing, because it means the objector has again shifted grounds, from innateness to a harm calculus. On its own terms: the reductio in P3 does not depend on the compared behaviors being equally harmful; it depends only on the form of the inference "heritable, therefore permissible," which fails wherever heritability and permissibility come apart. Once the objector moves to "but this one doesn't harm anyone," he has abandoned the biological argument entirely and is now making a harm-based case, which is legitimate to have but is not the "born this way" argument and must be assessed on its own (including the contested empirical and moral questions about what counts as harm, and the same grounding problem: why is harm-avoidance obligatory on naturalism?). The disanalogy does not rescue "born this way"; it replaces it.

MO5: "You keep bringing up pedophilia by implication with 'hard cases.' That's a vile slippery-slope smear equating gay people with child abusers."

• The scope has to be stated exactly, and then the objection dissolves. The argument does not equate anyone with anyone, and it is not a slippery slope (a slippery slope predicts that A leads to B; nothing here predicts that). It is a test of a stated principle. The objector's principle is "an unchosen, innate sexual desire licenses acting on it." To test a universal principle you check whether the objector applies it universally, and he does not: he will not accept it for any desire he regards as harmful, and when such a case is raised he immediately supplies a different criterion (consent, harm). That reaction is the entire payload: it demonstrates, from the objector's own mouth, that innateness was never his real moral standard. Far from equating persons, the move distinguishes them, on grounds of consent and harm, which is precisely to concede that "born this way" is not what is doing the moral work. Naming that is analysis, not smear.

MO6: "Even if the logic works, this whole enterprise is cruel. Real people are hurt by being told their love is disordered. Truth without love is not Christian."

• Truth and love are not rivals here, and the manner matters as much as the content. The historic Christian position holds three things together: every person bears God's image and is to be treated with dignity and compassion; the moral standard on sexual conduct is universal, binding heterosexual and homosexual alike to chastity outside male-female marriage, so it is not a singling-out; and love does not consist in affirming whatever a person desires, any more than it does for anyone else's desires. A doctor who tells a hard truth kindly is not cruel; flattery that withholds truth is not love. The argument on this page is aimed at a claim in debate, not at wounding a person, and it should always be deployed with the tenderness owed to someone made in God's image. That the truth can be painful is not evidence that it is false or that speaking it is hateful.

Premise 2, The is-ought gap (the decisive move)

Affirmative case

1. Hume's observation. In A Treatise of Human Nature, Hume noted that writers slide, without warrant, from statements joined by "is" to statements joined by "ought," and that this transition needs justification that is never given. No set of purely descriptive premises entails a normative conclusion without a normative premise.
2. Application. "Orientation X is inborn/genetic/natural" is entirely descriptive. "Acting on X is morally permissible" is normative. There is no valid inference from the first to the second without an additional moral premise, and the objector supplies none; he treats "natural/inborn" as if it meant "good," which is the appeal-to-nature fallacy (Is-Ought Fallacy).
3. Why this is decisive. Because it holds independent of the biology, it lets the Christian concede the entire scientific claim, arguendo, and still block the conclusion. This is strategically ideal: the contested empirical debate becomes unnecessary.
4. The theological sharpening. Christianity actively expects humans to be born with disordered desires (Psalm 51:5, "in sin my mother conceived me"; Ephesians 2:3, "by nature children of wrath"). So "I was born with this desire" is, on the Christian view, true of all people about many desires, and it is the doctrine of original sin, not a refutation of it. Innateness and moral disorder are perfectly compatible; the whole biblical anthropology assumes it.

Anticipated objections

1. "But surely some 'is' facts are morally relevant, we do think 'she consented' matters. So the is-ought gap isn't absolute."
2. "If inborn desires can be wrong, you're condemning people for feelings they can't help, which is monstrous."

Rebuttals

1. Descriptive facts are morally relevant when combined with a normative premise ("consent matters" is itself a normative claim, not a bare fact). The is-ought gap does not deny that facts feed into moral reasoning; it denies that facts alone, with no normative premise, yield moral conclusions. The objector's argument has only the descriptive premise ("inborn") and no defensible normative bridge, which is the flaw. The Christian argument, by contrast, includes a normative source (God's design and command), so it crosses the gap legitimately.
2. This misreads the position. The historic view distinguishes desire/temptation from act, and does not treat the mere experience of an unchosen desire as itself blameworthy in the way a chosen act is (Homosexuality hub, orientation/desire/act). Temptation is the universal human condition, not a special guilt. Culpability attaches to the will and the act (James 1:14-15). So no one is "condemned for feelings they can't help"; the moral question is about what one chooses to do, which is true for every desire every human has.

Premise 5, The consent-pivot judo

Affirmative case

1. The observed pattern. In practice, the "inborn and natural" argument, when pressed with any case the objector finds abhorrent, is not defended by appeal to innateness; the objector immediately introduces consent and harm as the operative distinction. This is nearly universal in real exchanges.
2. What the pivot admits. If innateness and naturalness were the real moral criteria, they would apply across the board. The instant the objector reaches for a different criterion to handle a hard case, he concedes that innateness/naturalness was not sufficient, and that consent (plus harm) is carrying the actual moral weight.
3. Redirect the debate. The right response is to accept the pivot and move there: "Then we agree, being born with a desire doesn't settle whether acting on it is right; consent does the work for you. Good. Let's examine consent." The biology is now behind both parties.
4. The grounding problem. A consent-only sexual ethic must answer two questions it usually cannot: why is consent sufficient (given that most people still judge some consensual acts wrong), and why does consent create binding obligation in a naturalistic universe with no objective moral facts (Moral Argument)? The Christian can affirm consent's importance and ground it (image-bearing dignity), while also holding that consent is necessary but not sufficient for rightly-ordered sex. The dispute is now correctly located at the worldview level (Worldviews).

Anticipated objections

1. "Switching to consent isn't a concession, it's just refining the view. Of course inborn desires are fine to act on when they don't harm others."
2. "You're just trying to drag this back to God so you can win on your home turf."

Rebuttals

1. Adding "when they don't harm others / when consensual" is not a refinement of "born this way"; it is a replacement of the criterion. "Born this way" and "consensual and harmless" are different standards that deliver different verdicts (many inborn desires are harmful; many harmless acts are not inborn). Presenting the second while sloganizing the first is equivocation. Once the real criterion is consent-and-harm, the argument is no longer "born this way" at all, and should be defended, and grounded, as a consent-and-harm ethic, which is where its actual difficulties lie.
2. Locating the debate at the level of moral grounding is not a rhetorical trick; it is where a disagreement about whether an action is permissible necessarily lives. The objector's own argument implicitly appeals to moral facts (that cruelty is wrong, that consent binds), so asking what makes those facts true is not changing the subject; it is finishing the objector's sentence. If the honest answer is that naturalism cannot ground them, that is a result about the objector's worldview, not a debating tactic.

Christian satisfaction, why the framework is internally coherent

The five premises integrate without tension:

• The empirical correction (P1) removes the false impression that the science has settled "born this way" as determinism; it shows influence, not destiny.
• The is-ought gap (P2) is the decisive, biology-independent move: no descriptive fact of origin entails a moral permission, and original sin makes inborn disordered desire a predicted, non-excusing feature of the human condition.
• The heritable-trait reductio (P3) shows that "inborn licenses action" is a principle the objector rejects everywhere else, so it is not his real reason.
• The appeal-to-nature reductio (P4) shows "animals do it" licenses infanticide and forced copulation if it licenses anything, and that humans are moral agents, not governed by animal behavior.
• The consent-pivot judo (P5) shows the objector's own retreat to consent concedes that innateness was never the criterion, and relocates the debate to moral grounding, where the Christian ethic has a foundation and consent-only naturalism does not.

Each premise independently blunts the objection, and together they show that "born this way, and animals do it, so it's fine" is a bundle of a contested empirical claim, an invalid inference, a principle no one holds, an appeal to nature, and a silent change of criterion. The historic ethic remains coherent: a universal, creation-grounded standard on all sexual conduct that already grants desire is unchosen and deep, holds every person to be an image-bearer of infinite worth, and locates the moral question where it belongs, on chosen action and on the design and authority that ground right and wrong. The residue to hold with care is pastoral, not logical: these are real people with real burdens, and the argument is to be spoken as truth in love, never as a weapon.

Live-cite kit

Scripture (for immediate deployment):

• Genesis 1:27 and Genesis 2:24, the male-and-female, one-flesh creation design that grounds the ethic in a rationale, not a taboo.
• Matthew 19:4-6, Jesus grounds his sexual ethic in the Genesis creation pattern.
• Romans 1:26-27, the argument from physis (created nature), which itself presupposes the desire is deep-seated.
• 1 Corinthians 6:9-11, the act-focused, universal vice list, "and such were some of you," washed and changed.
• Psalm 51:5 and Ephesians 2:3, all humans are "born this way" with disordered desire, original sin, so innateness excuses nothing.
• James 1:14-15, desire (temptation) is distinguished from the sin it gives birth to, the orientation-desire-act distinction.

Scholarly and scientific (for credibility):

• Andrea Ganna et al., "Large-scale GWAS reveals insights into the genetic architecture of same-sex sexual behavior," Science (2019), the largest study; no "gay gene," behavior not predictable from the genome.
• Niklas Långström et al., Swedish twin registry study, Archives of Sexual Behavior (2010), heritability estimates far below determinism.
• American Psychological Association, public statements: "no consensus" on causation; nature and nurture both contribute.
• David Hume, A Treatise of Human Nature (1739), the is-ought gap.
• G. E. Moore, Principia Ethica (1903), the naturalistic fallacy.
• Robert A. J. Gagnon, The Bible and Homosexual Practice (Abingdon, 2001), the exegetical case.

Aphorism (for the close):

• "'I was born wanting it' has never, for any desire, answered the question of whether acting on it is right."
• "The moment you said 'but that isn't consenting adults,' you told me being born that way was never your real reason."

See also

• Homosexuality, the anchor hub on the topic, orientation/desire/act distinction and the Christian position
• Biblical Sexual Ethics Objection Defeater, the companion defeater on the biblical-text objections
• Is-Ought Fallacy, the logical core of the whole reply
• Moral Argument, the grounding problem the consent-pivot exposes
• Is Being Gay Biological, the source page on the genetics
• Worldviews, the level the debate belongs at once the biology is set aside
• Debate Logic Toolkit, the is-ought, appeal-to-nature, and reductio tools deployed here
• Imago Dei, the image-of-God basis for both human dignity and moral agency