I think Bernard might be right.
I don't know if you read The Online Photographer, Mike Johnston's blog which is one of the most intelligent photography blogs on the net, but on Sunday, he wrote a piece about the upcoming election and dealt with what he saw as the major problems with Donald Trump. Mike doesn't deal with politics on his blog, and this was a stark exception, and he didn't allow comments on the piece, but the thing he wrote was really educational. And, it suggests why Bernard may be right -- that people who suffer from narcissistic personality disorder, like Trump, often attract large numbers of people who need a narcissist to tell them what to do and what to think. In other words, they suffer from a related disorder, and that's what gives power to authoritarian leaders down through the ages: they need a messiah.
Yeah, I read his blog, less so now than before, because it is not really a photography blog any longer. He writes about his diet, his addiction, his eye surgery, his trees falling down, his interest in audio equipment, his passion for playing pool, etc., so it is a real mixed bag. He seems like a nice enough guy, and I am sure I would have a good time spending an afternoon sitting on his front porch and talking with him, but I can't say I would seek out his advice on anything I can think of, not even about photography. His post about narcissistic personality disorder mostly mirrors what I have read, but no new insights jumped out at me, not that I am an expert, so I don't know what it brings to the conversation. But for people who might not have read about it before, it could be a helpful introductory primer. Nothing wrong with that.