If they don’t stop rioting then they will just have to be arrested, convicted, and put in prison.
On Election Night, I predict a law-enforcement crackdown on the rioters the likes we haven't seen since the 1960s. At that point, President Trump has nothing to lose as he's either been defeated or term-limited.
I wonder if the LARPers playing revolutionary in the streets understand that it's about to stop being a game. Cracked skulls and long prison sentences are coming.