A lot of innocent civilians die in the process of toppling any eternal psychopathic dictator with firm grip on their country. The bloodbath of WW2 could have been completely avoided if Hitler was simply allowed to take a bunch of countries and kill some minorities. If that works for you then there is something awfully twisted about you. This, however, doesn't work for people under those regimes - the ones that actually get burned.

Also, chemical weapons are WMDs - something Saddam had and used. More homework for you: Operation Opera. Left alone, this guy would be a more psychotic ME DPRK. It's hard to imagine that DPRK itself doesn't come close to Iraq under Saddam.