A close friend of mine is, well, gay (as in man gay), and he doesn't have the fondest opinion of lesbians. He's also quite critical about trans people. He does like other (especially beautiful) men a lot, so that gay part is definitely covered, he's not in the closet by any means or anything like that.
I always find these "screw your rights, I've got mine" types funny. At the end of the day, once conservatives finish tarring and feathering trans people, they're up next. Our rights do not exist in a vacuum; we're all in the same boat. Sure, gender and sexuality stuff isn't the same, but we share a lot of issues and (most importantly) gay men would never have gotten any rights if they were duking it out alone (and neither would the rest of the acronym, for that matter).
I think I know why gay men tend to take this view way more often than the rest of the acronym, though: straight men don't hit on gay men, but straight men constantly hit on lesbians. If I had a nickel every time I heard "I can turn you straight," I'd be closing in on a couple dollars by now.
