You don't understand the power the government can wield if there is "justification" for it. The only way to have the government serve us instead of control us is to be loud, in the majority, and peaceful. At least in a country like the US.
What you're saying hinges on the people never stepping outside the bounds of what the US government deems acceptable.
Consider that the US government deems what we want (no more police brutality) unacceptable, by definition, we need to work outside the system to solve the problem.
It's similar to 2a people I've met that think that somehow the constitution guarantees their right to overthrow the US government if it becomes tyrannical. That's absurd. The US government would never let itself be overthrown. There's no internal system for such a thing.
The US government will also never fall to external forces, unless we are nuked. Their power far exceeds what most of the general population can imagine. The only way to change life as a citizen is to get the majority of the population on your side and to be loud. And if you get criminal or violent for no reason (there's a difference between directly fighting against police brutality and beating a small business owner senseless because he doesn't want you robbing him) the government will easily squash you.
> (there's a difference between directly fighting against police brutality and beating a small business owner senseless because he doesn't want you robbing him)
Fyi this is an example I often see spoken of, and then when it gets linked to it's actually a man that was charging at protesters with a sword unprovoked.
It's not just about what the US government deems acceptable, it's about what the US people deem acceptable. There's a breaking point where the general public will start demanding that looters be shot as a matter of pure self-defense - and as you can see in right-leaning media outlets, some people are already there.
