This is an entire country living in a seige mentality. I suspect even if you could overthrow the little twerp, the people would undergo severe culture shock for at least two generations when trying to deal with the outside world.
A couple of years ago I read a story here on FR about some North Korean women students who were demonstrating when a poster of the Dear Leader blew down in the wind. They became hysterical, trying to pick it up and rehang it, weeping and wailing the whole time. Very creepy, and indicative of what has happened over there.