Sure, none of it is real and we can change it. The problem is that “we” includes all the other people, and what is “real to us” is what we make of it.

If the people collectively decide to abide by our current system of government, laws, and voting in order to not rock the boat, then trying to forcefully change that gets you labeled a terrorist or a criminal.

But if enough people agree with you, then it starts getting closer to being a new thing.