There will always be violence, swearing and all that other stuff, no matter where you go or what you do, you will be confronted with it.
You know what will happen after humanity gives a stuff about races? They will hate each other still because of the hair color, how they look like, what they like and what they wear.
What will happen when we find a second life form in the space? Racism all over again!
I will never change my attitude because anyone else does so. Just because anyone is nice to that one single person it doesn't mean that I have to!
Just because humanity finally understood that there are actually no differences between races it doesn't mean that I have to threat them with my nicest attitude!
I think you see where this is going.
Right here, Destroyer teaches the difference between respect and populatiry.
Aye, got mixed up with stuff.