Protesters gonna protest. Rioters gonna riot. Media gonna media.
Whenever the standard rule of law is challenged by group behavior, some people use the moment to enjoy the giddy thrill of escalation and chaos. They are already preparing for this inevitability in whichever city wins The Stanley Cup. The bros will be out, fires will be set, and vehicles overturned.
As someone else mentioned, there's a way to deport thousands of illegal immigrants without anyone even noticing. Storm troopers wearing masks and refusing to identify themselves in a performative show on behalf of a hyperbolic campaign promise by a wannabe dictator is just asking for trouble. A mob turning out to challenge these f#&%ers seems pretty American to me.