Lance Welton has done some great work attacking the foundations, if it can be called that, of Leftism. He has reviewed psychological evidence that links Leftism with mental illness, and now has gone after the more obvious, that Leftist have a love of authoritarianism. In short, authoritarianism brings it all together, as leftist being aggressive and psychopathical, find a natural home with authoritarian regimes which allow these impulses and unnatural fantasies of violence to be realised. It is a very sick and dangerous culture indeed, as past genocides have shown.