"The children are our future", the fact that political appeals on behalf of children are impossible to refuse, heterosexual marriage, the nuclear family, and the entire political edifice he sees as built up around the idea. He sees the figure of the queer person as someone left out of this social order. He suggests that rather than (or maybe in addition to) fighting for the right to join in the social order--through joining the military openly, gay marriage, gay adoption etc. gays and lesbians should resist the entirety of reproductive futurism.

Even if they succeed in that goal all they'll do is cause the affected culture to evolve to extinction.

[That make sense to anyone? Just trying to translate the ideas into something reasonable sounding.]

This is more or less what conservatives have been accusing the gay-rights movement of being a cover for since day one.