this is not a distinct change of behaviour

This is what I disagree with. The theatrics of justifying police brutality don't change the outcomes of police brutality -- people still die -- but the fact that the theatrics can now be dispensed of in favour of paramilitaries directly using violence to terrorise the people is a distinct change of behaviour towards fascism.

And I think it's important to recognise that because, as many scholars of fascism have warned time and time again, this is not a binary where a switch get flipped and haha, since today you're in a fascist state. It's a progressive erosion of the social contract. ICE as deployed by the Trump regime right now is a basically textbook run: create a paramilitary force, recruit from existing criminal militias to select for loyalists and violent personalities, normalise them as keepers of order, push out or integrate any other enforcement structures so that the paramilitary becomes dominant. Basically the only difference is that Trump didn't have to create ICE, it was already there just waiting to be pushed through the pipeline.

Does this event fundamentally change how you and I perceive America? No, if you were paying attention you knew the rot inside, and you've been shouting that Trump is a fascist since the very beginning. It is, however, a sign that the situation is much worse than it was months ago, that fascism is progressing, and if this is the point at which someone not paying attention wisens up and goes "shit, we are moving towards a totalitarian nightmare" then good, welcome, grab a pitchfork.