It's not just Trump. It's also Orban, Kaczyński, brexiters, and probably others from countries I don't hear about. It seems last few years people everywhere decided to "show the establishment" by electing irrational politicians.
Dan Carlin has a good take on this in his Common Sense episode "Revenge of the Gangrenous Finger". There's a largely neglected segment of the population, and they're getting angry enough to burn everything down.
