It's not even about "liberalism" or "conservative" mentality. It's just common sense really. How the fuck does homosexuals hurt you in any way? Nothing. They don't hurt anybody.
Yes, that's what I meant by liberalism. The idea that as long as you don't harm people around you you should be allowed to do whatever, also called the harm principle. Anyway, I'm not here to debate moral systems; just saying that the attempt I replied to was weak even if you agree with the conclusion.