Some people have postulated the rise in homosexuality is a result of endocrine disrupting chemicals in our environment.
No doubt it interferes, the question is what results from the interference.
I wonder what environmental factors caused the ancient Greeks to be lovers of pederasty and homosexuality...
" I'm gay because my endocrine disrupting chemicals made me a flaming homosexual"
I think the feminization of boys is due both to cultural factors and environmental endocrine influences. Cause of homos -- not so sure.