I watched a lot of videos. Certainly a lot of the perps looked like local gang bangers to me. My guess is antifa is being seeded into the mix to agitate and stir up the locals.
It is hard to believe locals organized this by themselves. Thus I believe its a hybrid. Antifa organization with a lot of worker ants supplied by locals.
It appears that AntiFA prepositions weapons of destruction all around the area where they want to use them. I have seen pictures of the pallets of bricks where theres is no construction and read about pre-planted water bottles filled with gasoline, rocks, pipes, etc left in parked cars, under bushes etc.
That’s exactly how George Soros’s antifa and other color revolutions roll.