This really changes the equation. Trump is going full Fascist tyrant now.
When paramilitary storm troopers appear, we have some Constitutional rights to consider in regards to throwing off tyranny. This is not a legal action and the jackboots are not legitimate if we say so.
There are protocols and procedures that don't seem to be being followed and that breaks the contract. Law and order means following the law.
Does Posse Comitatus apply here as well. There is a Constitutional line between local/state law enforcement and the military, right? I think there are only exceptions in the extreme and the National Guard should a "support", (logistics, etc) if things are out of hand. That may be grounds for a response by officials and citizens.
I don't think this should be taken lightly at all, lest we fall prey to a new Hitler, so to speak. At some point a line is crossed and repair may be impossible. It is that serious to me. We are at the brink and we know what Hair Furor wants now.