Of course people are fed up with those things. They also have the ability to organize and make noise about it. That, combined with polarization, as I've said, heightens both the activism and the perception of such activism.
I think polarization is the main cause. Demagogues love to craft an "us vs them" narrative, pose as heroes of the "us" side, and plenty of gullible people fall for it with gusto. Mentally, we're still monkeys who will follow a strong leader without questioning.
Mind you, demagogues are not only politicians, they can be human rights activists, teachers, businessmen, neighbors, etc. Emotion managing should be a mandatory class at basic school, so many of us need to think with our heads instead of our guts.