I see no reason to limit discussion of the consequence of what we did in Iraq to 2014, but even then, it's not nearly as positive as what you're claiming. Iraq post 2014 is now effectively a client state of Iran, something that makes life much more dangerous for broad swaths of ordinary Iraqi citizens, as well as the region in general.

I don't think it's reasonable to argue your intervention in my house fire was successful because you used your bulldozer to clean up the rubble, if you were the arsonist that set fire to it in the first place.

If you'd like a particularly poignant "fly on the wall" style look into how ordinary Iraqi people saw the invasion in 2003, and their predictions for the future, check out Iraq in Fragments. Many of their predictions have come true in the years since. https://www.youtube.com/watch?v=hiu8cXhjpX4