If there’s any prenatal source for feminized males and masculinized females, it will be due to hormonal exposure during critical stages of development, imho, that would only create a potential propensity to that particular behavior, not an absolute orientation.
No one is born “gay.” They’re influenced into the behavior via exposure to it when vulnerable, either due to molestation at a young age, or during a traumatic experience with the opposite sex later, after sexual maturity.
Even those born with sexual birth defects that lead to questionable sexuality should choose one or the other for their own good, and the good of society. This muddle and confusion serves no good purpose, we’ve certainly seen that over the past several decades.
Sounds good to me.