All talk from these whimps.
They will riot angrily in places where the local government protects them!
Don't get too cocky there. The whimps are merely the useful idiots in the front row. It's the people in the back that we need to track more carefully.
ANTIFA has conducted at least two successful street assassinations (Denver and Portland) and organized dozens of massive riots which have cost billions of dollars in ongoing damages. That is an impressive resume.
They are backed by a network of "Non-profit" organizations with ample funding from corporate and government sources. They have full-time coordinators moving around the country and a well-developed logistics chain.
ANTIFA is "just an idea" of course. Each operation is an independently-owned franchise, and they can change their names in a heartbeat. Don't get too stuck on the names. The generic "Leftist Organization" will work just fine.
Their centralized command and control is unreliable and riven by antagonistic factions. Dissident factions are far more likely to turn on each other with armed forces, since that is precisely what they are willing to use on us.
The corporate and government sponsors will try to put ANTIFA back the the box when they are finished with them. That sudden, but inevitable betrayal will produce some very strange new allies.
Cutting down the whimps in the front row may be a pleasant fantasy, but a more effective measure would be to go after their logistical support network. That is going to take a lot more effort. It cannot be done from our front porches.
"Do unto others - before they do unto you" (Proverbs Paranoia 1.5)