I don’t entirely agree: in a real democracy, government is an extension of people. They are hired brutes and managers that do the job that people tell them to do. So what if the majority of people collectively don’t want mass protests at the universities? Or that they want to be protected from masses of people randomly obstructing traffic?

Yes, it is possible for a government to use those restrictions as means of oppression: when people don’t even agree with those laws, but the government tries to shut the protesters down regardless. In such a case, a permit doesn’t even matter: just go out without a permit, because the government does not represent the people. If there were no permits, they would find some other loopholes to try and shut the protesters down: COVID restrictions, endangerment, (staged) complaints from neighbours, provocation etc. In Belarus, Russia, or Iran, they have millions of excuses ready to why all the protesters must go home or be arrested, the lack of permit isn’t even that common these days.

P.S. Also wanna point out: I’m not from the US.