What does it mean?

The fact that the people that used to run Iraq, the people that were allowed by the "international community" to sit in the UN and pronounce on the morality of US policies and were treated as "legitimate," are now murdering Shiites at random is being used as an argument that these same monsters should have been left in charge of the country. If Nazis had reacted to the defeat, occupation and democratization of their country by murdering people at random in public places (my apologies to any Nazis who may be reading this, since, after all, whatever they did to other's children never contemplated murdering their own), would we infer from that that we should have left them in charge of the country?