Alright, look a formulation like this
the Iraqis would happily adopt democracy and start living a normal, peaceful life growing dates and exporting oil in perfect harmony with each other
is silly and beside the point. To build the basics of a functioning democratic state was not impossible, and some elements have been successful. They have the chance to erect an independent judiciary, for example. Why be so glib about that? They had a chance to foster an independent trade union movement, which has been blocked by succesive Iraqi administrations, by the Bremer occupation, by ex-Mukhabarat killers who keep bumping off trade union leaders, and partisan unions who abhor the very idea of independent unions anyway.
And this:
There were the same religious and ethnic faultlines you find in every country that's been stitched together out of a tribal patchwork by an outside imperial power - Saddam's mob were just keeping the lid on it al
is precisely the propaganda 'Saddam's mob' peddled, to very useful and successful ends, even while they were doing the very opposite. They were not keeping a lid on ethnic faultlines, they stoked these to consolidate their own narrow ethnic power base. Divide & Rule. And religious faultlines? They killed powerful religious leaders who posed any kind of threat, at least until the 90s, when they thought it expediant to import and synthesise Islam into their own State structure. Don't forget Saddam's mosques!