I suspect you've never tried to be involved in politics.

It's actually pretty easy to effect change, especially at a local level, because so few people put in the time to try it; it's a lot easier, I guess, to sit around on the internet posting about "ammo box" recourse.

Try volunteering on a campaign in your home town, you'll be surprised at the people you meet and the outcomes you can play a role in.

I've helped with, and seen others fight for, various local political causes, none of which went the way any of us wanted. You can effect change, but only if the change you want is already going to happen anyway, and your opposition will vandalize your property and slander your name.

And downmod you, apparently...

At the even more local level, you can effect changes to things in your own living space quite easily.

Something clearly does not scale up.

A major point to the rule of law is to protect assorted minority interests from the majority. The larger the group, the stronger the groupthink.