For sure. I think part of it is what happens when Dunning-Krueger strikes someone confident and charismatic enough to teach their ill-conceived ideas to others

For sure. I think part of it is what happens when Dunning-Krueger strikes someone confident and charismatic enough to teach their ill-conceived ideas to others who find the idea appealing enough to take it and run with it. A runaway bullshit train. Eventually it becomes widespread enough to become “conventional wisdom” to to some groups and most people don’t question conventional wisdom imparted by people they trust. It seems a lot of conspiracy theories work that way.