The two main purposes of street protests are:
(a) Bring attention to the cause;
(b) Pressuring the government to change their policies.
But in this case. it's counterproductive. Everyone in this country with a pulse knows about what's going on with ICE. No need to bring any more attention to it. If this forces the administration to change their policies, the change will be for the worse, not better.
These street protests can only get more and more out of control, just what Trump wants do he can send in more troops, invoke the Insurrection Act, declare Martial Law, cancel elections, etc. etc.. So here's what they should do. Just the opposite. Have everyone stay home and make Minneapolis a ghost town. The ICE agents will just be standing around in empty streets with nothing to do. Maybe they'll get bored and leave. (OK, probably not.)
Obviously, this can never happen because people there are powerless and this is their only means to feel they are doing something important. But they are playing dangerous game.