The invasion was a poor decision.
If it takes two generations for Iraq to come around to something good then I am not sure what metric would allow us to take credit for the change.
Meanwhile, just because Iraq may become a freer society doesn't mean that it will stabilize in a way that will benefit us.
As noted above, we can all hope.
I disagree absolutely with the idea that, in the name of 'doing something' in the face of seeming recalcitrance, the appropriate response is to get into bed with known shysters, cherry pick information, invade a sovereign nation, occupy that nation in the most ill-informed manner possible, spend more than a trillion dollars (we are not done pouring money down the hole), etc. We were already doing something -- no fly zones, inspections for MWD that clearly showed no such animal was being found, etc. Iraq was unequivocally contained and Hussein was doing some things that we wanted (keeping Iran at bay).
Further, if you are going to run around brandishing the big stick because it is the only thing you can think to do, best make certain it is a sustainable ploy, a ploy you know how to finish.
Just a poor rationale. It is clear that Hussein was an unsophisticated thinker in re what the US response might be, and it is clear that the Bush Admin was more sophisticated only in the way of selling ******** -- and that game plan was not carried out with any admirable degree of sophistication.
I admit, I have always thought that Hussein was the answer to much of what we wanted in the region, and that imaginative ways of addressing his problematic aspects was better than bull-in-a-china-shop intervention.
It may turn out well. I would say the principle is you don't expend that much blood and purse, not to mention the blood of others, in order to run down ill-defined, poorly understood goals. That is step one of my analysis and has been all along. That principle says you don't invade no matter what the imaginable possibilities might be. You need something stronger.