Piercing cognitive biases is hard, maybe harder if those most in need feel forced.
I think about this article (post?) called “How to Change a Mind”[1] a lot. It’s about a woman whose husband was in a religious cult and how he finally realized it.
[1]https://forge.medium.com/how-to-change-a-mind-1774681b9369
Thankfully that one seems to be dying off. Their membership is in decline, the internet has made it more and more likely that any potential convert has already heard the horror stories.
And just as religion may often teach people to turn off their critical thinking skills they can be taught to use them again. And human brains evolved to recognize unhealthy or unnatural facial imagery for millennium. So unmasking the more successful techniques may be enough to break us out of the "anything can be fake" malaise.
Including Harari. There's more wrong in that book than there is right, aside from basic facts that people should already know.
Chriatopher Ryan (Civilized to Death & Sex at Dawn) explores the few compelling points made by Sapiens in depth and without all of the disingenuity and naive philosphy present in Sapiens.
The human mind and body is predisposed for social cohesion through shared narrative, and this exposed a weakness in our psychology: we are, as groups, extraordinarily gullible.
As a result we have religion, conspiracy theories, politics, and crime.
It remains to be seen whether this is an evolutionarily fit strategy.