It has nothing to do with education or intelligence. I see many smart, educated people parroting the nihilistic rage. They know what public institutions are saying very well. They just knee-jerk disbelieve the institutions unthinkingly. My recent essay on the difference between skepticism vs cynicism is instructive here. Because many of them are smart, they are good at making their disbelief sound just pseudo-intellectual enough.
It's not just the fascists and Trump cultists. Many on the harder left are no different and it's causing a real breach between those who want to re-fortify sabotaged institutions and those who want to burn everything down and replace it with who knows what and who knows how..