You mean stuff like, Americans don't deserve a democracy? You mean like that kind of "sensible" stuff that your stormtrooper friend said? (And I'll just ignore the fact that your friend doesn't realise that we are a Republic, not a democracy.)
I don't know in what world calling a Jew a stormtrooper is acceptable, except perhaps that of Mahmoud Ahmedinejhad.
I realise that perhaps my humour was a bit subtle and went right over your head, but I'd just like to point out that calling a Jewish Israeli a Nazi is basically antisemitism. Or it would be if you had brains enough to comprehend what you're doing. Your behaviour, as far as your national image goes, is not going very far in refuting the implications of my little joke.
By the way, while the United States are defined as a Republic, it officially uses a system of liberal democracy in order to govern. In reality, this is actually plutocracy, but that is irrelevant to the point - practice often deviates from theory.