That's a rather disgusting screed.
You're confusing conservative, the technical descriptive word, and conservatives, the political manipulators who are in fact reactionaries...
...Conservative means holding to traditional values and buying into traditional institutions.
If the author meant gays are becoming socially and not politically conservative, why did he point out that 27% of "social" conservatives supported John McCain and why did he claim (absurdly) that the Tea Party is not anti-gay? Are McCain and the Tea Party not political institutions?
Why did the author claim that gays used to hate America, that gays used to support the Viet Cong, and that gays used to support Castro? Was the Vietnam war not a political debate? Is communism not a political argument? What do the Vietnam war and communism have to do with wearing plain gray suits and not starting fights in bars?
Kirchick is a political writer, and he is trying to make a case that gays are becoming
politically conservative. He is trying to argue that this is happening because the political conservative movement is no longer very anti-gay, so we no longer need to fear their rabid bigotry ("anti-gay animus does not appear to have any place in the Tea Party movement.").
The latter is an absurd contention. The conservative political movement in the USA is as anti-gay as it ever has been. Listen to the speeches of the Tea Party members. When it comes to anti-gay proclivities, the Tea Party members express their bigotry with pride.
Kirchick wants the Republican Party, I suspect, to adopt the liberal political values of balanced budgets and fiscal responsibility, while also adopting liberal social views of tolerance toward human beings who may be different from ourselves (including homosexuals). But the Republican Party is not about balanced budgets or fiscal responsibility or tolerance of oppressed human beings. And Kirchick's attempts to paint it as gay-friendly are bizarre.
What I find disgusting is Kirchick's own anti-gay bigotry. His self-hate is palpable and dysfunctional. To claim that gays formerly wanted America to lose the Vietnam war and that we supported Castro because we are communist and un-American is just about the most vile hate speech I have heard in recent years.