And for when the people in charge decide they’re not going to hand over their power despite being elected out, we have rules about it not being allowed to clear out people’s weapons.

Basically we do our best to ensure there are no circumstances where those in charge get to ignore those they’re ruling over. It’s a way of solving the agency problem given humans’ tendency to ignore the rules when they want to.

Another way to put it is that a politician might decide “oh this system of democracy isn’t going to keep me in power, so I’ll just step outside of it to the world of anything goes” and then an armed populace can say “nope, we’ve got moves there too, and they’re way worse for you than getting voted out”.

It makes the attractiveness of that step outside the system go way down.