Even if homosexuality were genetic in origin, that does not change the moral question involved...
Exodus North America - Relatively recent brain studies done by Dr. Simon LeVay examined a portion of the hypothalamus believed to control sexuality. He used cadavers from a very small sample of homosexual and heterosexual men (their orientation was, in some cases, presumed but not confirmed), and heterosexual women. Some of the men had died of AIDS. He measured this portion of the brain and found it significantly smaller in homosexual men. Although LeVay did not say this proved inborn homosexuality, some among the media and activists eagerly reported the tentative findings as being conclusive.
However, the results are highly speculative. This particular area of the brain is not much bigger than a pinhead anyway. And in fact, researchers debate whether weight or volume is a more accurate measurement method. The results do not shed light on causation: did genetic homosexuality cause a smaller portion of the hypothalamus that governs sexual behavior, or did chosen sexual behaviors cause a change in the hypothalamus? Or neither? Studies of twins aren’t any better. If homosexuality were truly genetic, you would expect to find an absolute, one-to-one correlation of sexual orientation for identical twins. In other words, any time one twin was homosexual, the other sibling would be, too.
Yet, that is definitely not the case—findings of 40% to 50% correlation don't match up to the 100% standard needed to "prove" genetic causation. Seeing that research findings do not prove their case, some gay-affirmative researchers and others attempt to bypass this barrier by saying that even a 40% to 50% correlation shows that genes are "at least one component" in a homosexual orientation.
If homosexuality is genetic, then that doesn't explain why we see such a similarity in personal backgrounds among the men and women who seek our help. There is a pretty uniform picture of poor family dynamics in general, a rift in the father-son or mother-daughter relationship growing up, feelings of being an outsider among one's peers during childhood and adolescence, and instances of sexual abuse/incest. These are root issues that men and women can address.
And even if homosexuality were partially or completely genetic in origin, that does not change the moral question involved: God declares in the Bible that homosexual and lesbian activities are sin (Romans 1:26–27).
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