I don't think that's it. They haven't had any trouble seizing power without a civil war. And its happening in Europe, too. 

Idk what it is, but my best guess for now is, this is the emergent behavior of nihilism on a mass scale. There's a power structure that takes advantage, but the voter base is there out of nihilism. Its not a low IQ thing... But look at how they talk to each other. Its like a psycho analyzing struggle session... so they definitely have some kind of mental problem. I don't mean that judgementally - it has to be recognized to find to solution. But the emergent phenomenon is self destruction on a social scale.