Look, I'm going to be 100% honest here and say that I'm still sort of uneasy around a few openly gay people, but that's more of natural xenophobia, because I have the exact same feeling around anyone who is very different than what I'm used to.
However, I'm perfectly ok with them otherwise. It's sort of like a foreign custom to me, I don't really get to say if it's right or wrong, and I'm not going to stop anyone at all. Hell, I lived with 2 gay roommates and a straight one last year, and I can honestly say that I prefered the two gay ones most of the time (the straight one was on all sorts of drugs, to the point that he demanded we keep the door unlocked because one night he was too stoned to figure out how to open a door), though there were a few issues (WHY THE FUCK WAS LADY GAGA ON EVERY SINGLE NIGHT AT 2AM!?). I do have to say though, they were very clean, which made my new apartment look disgusting by comparision.
After living with them though, I found I absolutely despised most extreme homophobes. I already had issues with them for trying to force values on others, as well as stereotyping and overall being assholes to others. In fact, I can barely stand to hear "gay" being used as an insult now. It's hard to listen to people talk about gays and lesbians as if they weren't human after being around them. It's also hard to listen to people spout Old Testement rules when they themselves break a lot yet somehow still pretend to be holier than thou http://www.11points.com/Books/11_Things_The_Bible_Bans,_But_You_Do_Anyway Look, if you're going to go the religious route with arguements, you best be damned sure you get your facts right before you start holding up a bible as a shield.