Arrogance and racism do little to advance the cause of what is otherwise a relatively very decent idea.
I don't see a trace of racism here actually. Arrogance is a subjective definition which differs from place to place.
No matter what country someone is from, a self-imagined understanding of "difference" is never justification for leaving diplomacy and decency at home.
Tell that to the stereotypical americans you see online.
Honestly, there's a reason why I used the term "stereotypical" in describing it, because it is merely a stereotype. The way some people are reacting, fits really well into the stereotype.