look for all those people aimlessly debating about this. all i will tell you is this. society will eventually allow gays to marry in the next 20 to 50 years from now. assuming we're even alive that long.
the reason is simply because society isn't ready to for gays to be married. Hence, why its not allowed right now. however, its really kind of pointless as this law will be amended in the future anyway. the reason, you have so many idiots against it right now is because its still a fairly new concept that scares people. and like sir ian mckellan, in "x-men", put it, "people fear most what they don't understand." you have to remember it wasn't until the 1960's that people barely even started to accept inter racial dating between a man and woman. let alone two guys or girls dating. however, as society has learned to embrace this concept, its not as taboo as it once was.
now you see integrated schools and integrated marriages too as it become more common. same thing with gay marriage. sure its unpopular now because its new, but people will learn to embrace it soon.
having said that, the quick answer would be NO for me to attend a gay wedding. Unless, I was related to either of the guys or girls getting hitched. If we were just friends, then I'd make up some excuse and mail them a wedding present. i know that makes me sound like a hypocrite, but hear me out please. you see, my point of view is this. Im a very shy guy in real life. especially around girls that i like. therefore, some people automatically assume im either gay or a closet homo even though I do nothing to suggest it. all i usually do is mind my own business. i don't bother anyone, and i've been straight my whole life. i do have a lot of gay friends, but they all understand my one rule. which is if i have to respect their right to be gay, then they have to respect my right to be straight. however, there are some gay guys that don't understand this rule when i'm forced to tell them this.
so they constantly hit on me anyway, when i tell them a milliion times that im straight. in a way it kind of makes me sad that not even girls give me this kind of attention, but rather ugly ass guys. thats why i wouldn't go. i'd be too scared that they would try to rape me or something since i have a hard enough time convincing people im straight.