Mobocracy wasn’t what the ancient Greeks had in mind with their democracy.
They weren’t setting up a contest where whoever could gin up the most dramatic activism would sweep the place. It was more like a fair plebiscite. They felt that good reason would prevail among most people.
Trouble with today is that political activity is purely voluntary. If our system required everybody to vote, not just allowed it, it would probably look a lot more conservative than it does today.
Carthage delenda est.