It's not because it kills my boner, or because religion says it's a nono, it's because they all require special treatment in order to function.
Imagine a civilization at it's prime, preparing for the massive incline into the existential singularity. Everyone is doing great, albeit a few problems here and there about race and religion war. Then, gays start becoming 'socially acceptable'. Now they have to slow everything down.They have to hire gays instead of straight people who were better at the job because a company doesn't want to be labeled as non-diverse. They have to hold seminars and such to teach regular people how to treat gays, to tell them the exact things they can and can't say without offending them. They have to walk on eggshells 24/7 to avoid hurting their feelings. They have to explain to their kids what these freaks are in a world that is confusing as it is. They have to be late to work or family functions or dying relatives because gays gotta have that parade on the biggest street in town and block your way for three hours, something an angry freight train would do.
Gays are a massive broken cog in the machine of a functioning civilization. I'm all for doing what you like in private, but when you tell everyone to stop so you can say "look at me, look at me!" then you can fuck yourself right off my planet. Bitching about being able to sign a paper that says you and your anatomical mirror are an item is insane, and now America has set itself up on the list of countries not eligible for global unity. Keep it up, Russia.
Inb4 not all gays are like that
Sorry, you're right. I exclude the 5% of gays that don't walk around in booty shorts or assless chaps and talk really loud about their problems.
Also, AIDS.