The problem is we're all too stubborn to become accepting of others.

Can't we all just respect each other's opinions and coexist?

There are over six billion people in this planet; we have varying backgrounds, points of views, and life situations. Of course, each of us are going to see the world differently. If a thing makes people happy and it does not hurt anyone, what gives you the right to take it away from them?

Just because you think something is wrong does not mean that it is wrong. Morals are subjective. There are no clear-cut rules with the "rightness" of things.

If you don't believe in something then don't do it and don't involve yourself with it. No need to parade around and tell people how abominable they are. Let others be. We do not have to be similar, we just have to tolerate each other.