I come back to the same two questions:
1. Why do people believe nonsense?
2. Can you dissaude people from believing nonsense?
2.a. Can you persuade people to replace nonsense beliefs with good ones: theories consistent with empirical facts?
2.a.i. Can you persuade people that empirical validation matters? Or that it even exists?
As long as people are free to believe what they want, and their motivations are to feel better, or self-treat their paranoia, or whatever other irrational needs drive them, they aren't likely to start acting rationally.
If the world is full of people who are increasingly irrational, desperate, impatient, anxious, scared, angry, delusional, and otherwise prone to erratic impulses… bad things will continue to happen, and they will get continually worse.
So we should figure out how to address this irrationality, I think. Not that's there's much hope. Generally, it just has to burn itself out, like a wildfire.