No, no miraculous transformation.The situation with the US is too far gone now. I can't say whether their bombing tendencies would dissipate or not if the US were to just leave but I don't see how they can continue doing it if the US leave. Iraq needs help to be rebuilt, sending US soldiers in is not helping so they should leave, bottom line.
Yes they can. Their objective is to impose an extremist state and to commit genocide. The U.S pulling out would only lead to increase in violence.
The soldiers are helping. They are the only obstacle to the Jihadis and Baathists waging full out war against each other and the populace.
Still I'm interested to hear how you would have dealt with Saddam after the first gulf war and your thoughts on what would have happened if Saddam had stayed in power instead of the 2003 war?