Finally, to address your belief that homosexuality might be self-sabotage I have to take issue with your belief that the sole reason for sex is for reproduction. Humans are a social creature, and like most mammals we do have sex to reproduce, but most of the genetic family that we belong to — Chimpanzee, Bonobo, etc. — use sex as more than a means for reproduction. Sex serves a lot of functions, so many functions in fact that I have to point you to a video from sexplanations “Benefits of Sex” ( https:///watch?v=ibk49rpHRlc ) to give them all to you. So, if sex for us serves all of these functions then it is very reductionist to just zero in on reproduction as its function and worry that it might in some way harm our species. LGBT people have certainly existed throughout all of recorded history and before that, and our species is still going strong.