Why can't Christians accept that there are other ualities than hetroual?

One question, why do you care? I'm gay and to be honest, i don't care what others think. They have every right to say "It's sick" or "It's not natural", it's their opinions. You can't force people to accept you, yes it can get annoying and it can get you down, but in the grand scheme of things it doesn't matter. As long as violence acts aren't commited of course.