I think the protests will be ongoing once President Trump starts to take action. The rats think that they can bully their way through this. They probably want clashes with the police so they can spin the narrative. Nobody can back down now.
Sure, they can back down.
The federal police agencies like the U.S. Marshals can be told to stand down. So can ICE.
Trump can say, “Well, the people voted to let illegals stay, so I guess that’s what I have to do. Sorry if innocent people get hurt, but they need to bring their concerns before their mayor now.”