If they never existed in the first place, the fear would would never be established. But unfortunately, these lower specimens who refuse to reproduce with members of the opposite love have tainted our species and other species too. Darwin would be so disappointed.
you are such a friend
how can something taint a species if it doesn't have the ability to reproduce.
besides, butt love was around way before darwin.
The only reason people think anything of it is because the Roman Catholic church demonized pagans. Despite the fact that not long before christianity rose to power plenty of romans were having gay orgies in their spare time.