It’s not genetic, and if it were, it would be dysgenic and would not express...except in the first generation. After which there would be low probability of continuity.
Nature doesn’t favor organisms that aren’t equipped to reproduce.
So Homosexuality is a personality disorder brought on by environmental factors, nothing else.
If you include time in the womb as being one of the environment factors, then we may agree; if not, however:
Let’s suppose a physically healthy mother and father, and then consider a pregnancy, difficult or not, wherein the mother experiences substantial (+/-) emotional issues such as profound regret over being pregnant, etc.
How is it possible to discount entirely some “irregularly” in the development of the fetus pertaining to its chemistry, the growth of its wiring, etc? Can there not be some result of the mother’s mental activity in that development? Are there not occasional mistakes in nature?
Makes sense to me. And one of the major "environmental factors" is molestation by homosexuals.