Where do you get off making such a general and stupid statement like that?
Based on what I have seen, heard and read from Americans over the past few years. I have seen Americans switch from love to hate in seconds. They appear all lovey-dovey with everyone because they are 1 part French, 1 part Scottish, 1 part Polish blah blah blah but the moment anyone in Europe or elsewhere criticises their country, their food, women, way of life, blind patriotism they foam at the mouth and say how they should have stayed out of WW2 and the other usual bullshit. Rotfl.
Anyway, Americans have a history of hating others (e.g. Blacks, Irish, Italian, Japanese, Native Americans, Mexicans) even within their own country.