I'm sorry if you felt offended, I really did not like to say it, but I wanted to say it quickly and did not know how, I generalized it because a lot of Americans I've talked to have been really *******s, and they have a big fame to be like that.
But of course that's not true, I've also met a lot of nice Americans, and I personally like the people there, but as I've said before, this arrogance is a fame of Americans because of the inflated ego simply by living in a country that is biggest power in the world.