I say "Why not let him make an idiot of himself" It's the ideal way for students to see a dictator in action. They may not have the "nous" to work out what he is about, but no doubt they will remember it as they mature and get a little more idea of life.
My main issue with this is that the same university that allowed this Jackass and Despot speak will not allow the current President the the American Minuteman Project or allow a ROTC program on their campus.