That isn't entirely true - a number of American companies (like IBM), businessmen (like Henry Ford) and bankers (the only one among the bankers I know by name off the top of my head is Prescott Bush, but I don't want you to think I'm trying to slander either of the presidents Bush by implication) were quite happy to have financial ties to the Nazi regime. And at least in Ford's case, that wasn't just about making a profit, but also about supporting a man he admired. But it's true that fascist and extreme-right regimes have never really had the kind of international appeal that the communist ones had - one suspects that might have a lot to do with their strong nationalism and focus on their own people, whereas communism had world-wide ambitions. Extreme right regimes can band together when it's convenient, and the European ones (plus Japan's) did, but if they're each convinced that their nation and culture is superior to everyone else's, genuine friendship with other nations becomes a bit difficult.

Okay, fair enough, you threw me off by talking about political murders. But violent manifestations, yes, you have a point there.

More respect for the police, I suppose (in certain environments in certain parts of Europe the attitudes towards the police are rather extreme, including notably in Greece as you noted). But I can't agree that nothing has changed. Even I, who considering my age obviously haven't followed American politics for that long yet, see a serious downward trend from when I first followed American politics to now.

I think you really need to consider the idea that, even if you don't agree with them, those voices on the left complaining about tone do that because they're genuinely worried or even scared of what it will lead to. Not because they want to silence the other side. And it's not as if there aren't voices on the right who also complain about the tone.