Anti gay-marriage atheist??

[Javaman]

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1. The primary evolutionary purpose of a man and a woman is to propagate the species and raising children. 

I just wanted to add one more thought to this first statement that so many others have already exposed as pure bullshit.

It seems to confuse sexual orientation with the actual ability to reproduce. Is there any actual evidence that homosexuals are incapable of propagating the species? It seems to me that gays and lesbians, physiologically, are no less capable of propagating the species than heterosexual couples.

I understand that their sexual orientation makes it far less likely that gays and lesbians will actually reproduce via sexual intercourse, but that's not the same thing as saying that they are incapable of it. My suspicion is that an awful lot of homosexuals have actually reproduced via sexual intercourse throughout human history for a variety reasons: caving to social pressure, forced marriage, rape, etc.

In other words, even if the notion of "primary evolutionary purpose" had any merit (which it doesn't), it still doesn't make much sense as an argument against SSM. Thanks to advances in medical technology, gays and lesbians are just as capable of reproduction as heterosexuals.

Just one more reason to be in favour of IVF.