I'm gay and I don't have a problem with people of other sexualities, as long as they're not dicks to me/any gay people because of my sexual interests. I support marriage equality, LGBT adoption rights, the usual fare for a gay guy.
The one slight problem I do have with only a few straight people is that whenever they see a romantic situation between a two guys or two girls, they're always going off on how it's inappropriate to "flaunt" their sexuality. And then they go kiss/hug/hold hands with their boyfriend or girlfriend. What the hell do they think they're doing? And then people who complain about pride parades, and how they don't understand why LGBT need a parade. Straights don't. But it's essentially a straight pride parade on every other day of the year on every street. Couples holding hands and walking, kissing, etc. This kind of hypocrisy just sets me off. Again, I wasn't making a blanket statement about straights, just that the few who do this are extremely annoying..