Originally Posted by pepe View Post
as an evolution believer, homosexuality should be regarded as a mental illness purely because it reduces likelihood of passing on your genes.
although for that matter believing in evolution is also a mental illness despite the fact it is true (accurate beliefs are not necessarily adaptive)

This is pop genetics 101.

That's not necessarily the case, pepe. For example, you have genes in common with all relatives, percentages of which depend on your genetic distance. It could easily be the case, as has been adopted by many cultures across the world, that a "homosexual" or "barren" member of a family, with caretaking or supportive duties for relatives, could actually ensure more of "his or her genes" passing into the future than a strictly heterosexual version of themselves.

And obviously just because one is gay does not preclude one from having children. Doesn't preclude from having many, many children.