I don't know what the future Iraq will look like, one state, loose confederation, or three states. I do know that that decision will be made by Iraqis, without regard for US interests or opinions, and, if history is any guide, it's likely to be made by the victors (if any) following a long, nasty civil war in which lots of innocents die.
That'll be true (or not) regardless of whether or not we're there. We've got nowhere near the force levels required to prevent it, and without a draft, which won't happen, we don't have the bodies.
I just don't see any good (from the US persepctive) outcome on the horizon. Stay or go, it won't matter. So we should go. If that's "defeatist", then I guess that's what it is, but that's what I see. I'd rather see Iraqis killing each other than killing each other and us. And those are the only two likely alternatives I see there. If I thought that there was a probablity of our presence creating a good outcome in Iraq, I'd support staying in and making that happen. I don't.
Would it be better to start leaving now, or to set up specific objectives for the Iraqi government, with a set reduction of our presence as each one is met, I don't know, but what we're doing now isn't working. When what you're doing isn't working, you change what you do... you don't keep doing it and hope for different results.
--Shannon