In most cases there isn’t much you can do to fool the government without a lot of prep time such as scouting routes to find cameras, destroying them, or being really good at changing into bloc in the middle of a crowd and not getting caught.
But the important thing is threat modeling. The past dozen or so protests I’ve been at haven’t had the government as a big threat, it has had fascists as the primary threat. While a fascist cop would be a problem, it is much less likely than fascists combing through protest footage to try and doxx people, or a fascist at said action trying to get good photographs. That’s why I masked up.
The last real dicey action that I went to I still masked up, even knowing that the government could still try to track me if needed because I knew it would be time consuming to do so, and that they would only go through the process of doing that if I make it worth their while. Bloc is still effective, but quite hard under this heavily surveillanced police state.
Well, there’s also that bit where we funded fundamentalists during the cold war to try and fuck with the soviets, and the imperialism we and the soviets did that led to radicalization. A problem that we exacerbated which bit us back in the ass a few decades later.