We could try taking people as we find them, that might help.
If you expect to walk into a crowded room and get on with every other person there, you are living in cloud cuckoo land.
If you don't like what they say to you, either ignore them, or ask them for an explanation, or even an apology. You may find that you took what they said wrongly. It's been done before on here, and in other places too.
To some of the other points made by other posters on here, I would say this. Remember that UK and US have different cultures, and a very different sense of humour too, and that over here, we are also black/white/brown/yellow/pink/fawn etc etc. Also as far as that is concerned, we also have a very different history.
I know we have a lot in common, but please try to respect the differences too, we march to different tunes you know.