"And they surely didn't ask the Americans to come in, destroy their infrastructure and remove the social order that at least provided them with peace of mind."
Are you sure about that? Can you be certian that a group of Iraqis did not lobby the US government for help, and I mean help in getting rid of Saddam?
If we were to have left nazi Germany to itself, or the communist USSR to itself, would we still not have gulags and concentration camps? This hits a little close to home for me. But there will always be dissenting groups that plead for help to the US government, and yes, the US is very selective as to whom it helps and picks and choses it's battles carefully.
I guess my point is you can't say that since there was no (active) revolution or civil war in Iraq that they (the Iraqi's) were ok with what they had. And maybe I am way off base, thinking as a westerner about how I would want to see them living their lives. Without fear, in prosperity, practicing their own religions, kinda like the liberties I take for granted here in Pennsylvania. But no human being should have to live the way they did under Saddam. Some day they will have to look back at their lives during and their lives after that mad man. They just need to get through this period, and God willing it will get better from here on out.