Police in Italy can get away with less than in the US, and honestly American police is better equipped for that kind of operation (in fact, for the episode that I am thinking about rumor was that American consultants were part of the operation, although that was never substantiated). Disclaimer, I am Italian myself but I live in the US now.
As far as right extremists being involved with the current riots goes, looking at pictures I see plenty of white people myself. And it's not like there's no black right extremists. Sometimes the line between right and left extremism can also be pretty blurry. Once you get to that point you mostly just hate the government and the established "system" and just want to destroy everything, more often than not these people have a troubled life and this is how they react to it. There is nothing rational about it.
I would also like to point out, I do think that most policemen are just trying to do their job as well as they can, and that most protesters are out there for legitimate reasons. There's just people of both sides that are out there to cause damage, and that's what ends up standing out.
As far as right extremists being involved with the current riots goes, looking at pictures I see plenty of white people myself. And it's not like there's no black right extremists. Sometimes the line between right and left extremism can also be pretty blurry. Once you get to that point you mostly just hate the government and the established "system" and just want to destroy everything, more often than not these people have a troubled life and this is how they react to it. There is nothing rational about it.
I would also like to point out, I do think that most policemen are just trying to do their job as well as they can, and that most protesters are out there for legitimate reasons. There's just people of both sides that are out there to cause damage, and that's what ends up standing out.