What is "self-determination"?
Letting Saudi-funded Al Qaeda fighters and Iranian-funded Shiites fight it out?
"Self determination" is one of the lamest slogans of the isolationist left. It pretends that any country these days isn't penetrated by a mass of outside forces-- military, political and economic -- and there is no such thing.
Military intervention may be clumsy and stupid, but it is self-delusion to believe that if you remove US troops, you remove outside intervention in a country, including by US corporate interests that will just cut deals with whatever remaining outside players maintain control of Iraq after US forces leave.
-- Nathan