Depends on if the character is overly stereotypical.
If they are regular gay and not so gay that glitter flies out of the dudes ass every time he farts, then yeah I could care less.
But I will say this, it's only the gay man stereotype that annoys me, the overly butch chick amuses me greatly. Which I've had it explained to me before, it seems that the ultraqueer[sub]TM[/sub] homos tend to exemplify the most annoying qualities of women, and since I can't stand chicks like that, it's just as bad if not worse when men do it.
I'm gonna stop now before my mind drifts any further.