ICE pretty much has all the employees it ever will. Even with the inflated budget they're having trouble recruiting gestapo. They're concentrating their efforts in Minneapolis because they don't have the resources to do it anywhere bigger, much less everywhere at once.

So they're all-in trying to get violent kickback so they can justify the Insurrection Act, because that will allow them to deploy troops, which the courts keep blocking.

Marital law == dictatorship. As far as I have read, that's the plan, then there will be no more elections and he can use the military for anything he can dream up. He's very worried about the midterm elections. Many signs are predicting the end of the republican majority in both sides of congress.

There is another way that does not involve violence, but it'll require a coalition. Several states will need to band together and withhold funding.