I'm not sure how to say this delicately, butt what is it that you think happens when 2 gay males are behind closed doors? I can assure you, at least one of them will be "advocating" anal sex.
I "get" your "point," LOL, but what I mean is that just because a sexual practice is disgusting to kindergartners (they all should be!) doesn't mean that its practitioners "advocate" it. What you do with your wife alone behind closed doors is not something you go around "advocating."