The Iraq was designed artificial by colonial power with arbitrary choice of borders.
For the coherence of such a nation dictatorships have been installed and tolerated.
Compliant and corrupt regimes with benevolently approved accounts in Switzerland are better to control for reap the oil resources as several states with complex political structures. In this case and in the last consequence the great US do-gooder Nation will install a dictatorship again and it is completely insignificant how much Iraqis will be killed 'cause they have not been counted since the raid and will not count for future.
It doesn't make any difference to this self-proclaimed master race.
Democracy is only a propaganda gag, a waste paper.

The Pest has a Name