Like most people in this thread, my gripes are more to do with personality traits than someone's sexuality. If someone is gay and they act like a regular person about it, then where's the problem? There is none. However, if someone is acting like a "queen," "fairy" or any other flamboyant stereotype of homosexuality, that's what irritates me.
It's the personality over the sexuality: I'd get pissed off with a straight guy were he acting all "in my face," loud and excessively feminine*, but straight guys tend not to have those personalities, and to be fair, neither do most homosexuals.
I suppose this is up for debate, but I don't think that it's a problem to have gripes with certain personalities (for example, LAD / Jock mentality in young/adult men), and certainly not a big enough problem to call them homophobic over it, because everyone has their irritants and certain personalities should be allowed to be included within those.
And after that long-winded post, I can now conclude that, no, I do not think that I qualify as homosexual. Homophobic. Damn.
*I say "excessively feminine," which is a subjective term (how feminine is "excessively feminine"?) but, as an example, I find Cameron from the show Modern Family to be one of the funny characters, and not an irritating one, because he is feminine, but not so much that I'm annoyed by it.