And in 100 years who knows what monstrosities our great grandchildren will think us guilty of. The point being that contemporarily liberal societies that have thought themselves above base totalitarianism have given way to such practices in rapid order before and we'd be fools to think we're immune to the same now.
Remember the Trump supporter who gunned down two police officers in cold blood just a few days before the election over a confederate flag?
Remember Nazi rallies on the steps of multiple state capitols in support of Trump?
The FBI and DHS both put out statements of concern last year over right-wing groups, who cause the vast majority of domestic terrorism in the US.
Just a few things to think about.
There is a cult of ignorance in the United States, and there always has been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that “my ignorance is just as good as your knowledge." - Isaac Asimov
maybe in a strictly technical sense but in any practical way dose it actually matter WHO uses violence to stop you from saying what you want? i mean if you put up a pro trump/hillary sign on your lawn and the guy across the street beats you up for it is that significantly different then a cop doing it? sure the government has a greater ability to harm on a larger scale but the individual impact is similar.
There is a cult of ignorance in the United States, and there always has been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that “my ignorance is just as good as your knowledge." - Isaac Asimov
No because you and I have no agreement that I will allow you to speak. You're never going to see one of these incidents result in any sort of charge to obstruction to speech, only assault because of the two parties neither of them is the government.
But yes in a literal sense I am "restricting your ability to speak" but it's not like you'll get extra charges for doing so.
Yes, it matters.
If the government punches you in the face to stop your racist claptrap that's a first amendment violation.
If a bystander punches you in the face to stop your racist claptrap that's simple assault with a potential for a small fine and a lot of hearty handshakes.
The laws didn't change and the police, I can assure you, would have stepped in if they were allowed to do so. Bring it up with their superior who made the call to not arrest rioters. Nothing is stopping them from doing so except some harsh twitter words from stupid trolls.