If/when they overwhelm the police, they are going to run up against people armed, defending their families/homes/businesses. With no police around, no consequences, these folks are not going to be bound by department regulations and the law. The only law that will matter is survival. The “protesters” are going to learn a hard hard lesson - those that survive.
The American military may have ROE, but the American people don’t. The ferals and their advocates and enablers need to remember that.