Well, if you want to keep law and order respected, you have to enforce it. The only way that works in the heads of moronic looters and trouble-makers ever present at demonstrations is to let them know in advance that there will be consequences.
There is no doubt that pretty much all demonstrations, everywhere, fall prey to those who take advantage of the confusion to rob and be violent. The US has no monopoly there: France sees similar, Britain has it, Germany and Italy have it - it’s an established game. Time to end it.
Of course, the above does not defend or excuse the elected leaders who, in my opinion, are currently amongst the worst we have ever seen. In effect, they are the elected version of the same people they have in their sights, the difference being that they have managed to win votes from people who, I think, have largely given up hope or expectation of honesty in public office.
The population is, and always has been manipulated by politicians and power groups; once it was through the press and radio/television, but now the Internet has leapt in and turned the entire communications asylum over to the crazies.
I can’t predict how or where it will end, but think there will be much pain - and quite possibly total dystopia with no way back.