Wonder no more. Such a position, in various forms, actually makes no sense. In fact, such a position requires a stunning degree of illogic.
There's an important book at http://www.endthewartour.org called "Iraq: The Logic of Withdrawal" by Anthony Arnove. The book has a Foreword and an Afterword by Howard Zinn, who in 1967 published "Vietnam: The Logic of Withdrawal." Arnove's book is important because it refutes all the major claims against immediate withdrawal.
Arnove begins with some historical background, and then lays out an overwhelming case for the following points. I'll list them here, but you'll need to read the book (it's only 100 pages) for the arguments:
2. The United States is not bringing democracy to Iraq. Spreading democracy had nothing to do with why this war was launched or why it is being continued. As Arnove writes, "The U.S. government opposes genuine democracy in the Middle East for a simple reason: if ordinary people controlled the region's energy resources, they might be put toward local economic development and social needs, rather than going to fuel the profits of Western oil companies." Does that sound outrageous or paranoid or "anti-American"? Read the historical context that Arnove provides, or check the evidence at www.afterdowningstreet.org , and then explain to me how you can see it any other way.
3. The United States is not making the world a safer place by occupying Iraq. In fact, this war has made the world much less safe. We've set a precedent for other nations to attack each other. We've driven other nations to invest in weaponry to try to hold off a U.S. attack. We've heightened anti-U.S. sentiment and significantly increased the incidents of terrorism each year.
5. The United States is not confronting terrorism by staying in Iraq. Al Qaeda arrived in Iraq AFTER the invasion.
6. The United States is not honoring those who died by continuing the conflict. That thinking is a recipe for compounding the tragedy without end.
7. The United States is not rebuilding Iraq. Halliburton and Bechtel are looting, not repairing. It is a racist and imperialist frame of mind that allows us to imagine that Iraqis could not best rebuild their own country. We owe them financial support in that effort. At present we are draining their resources, not adding to them.
8. The United States is not fulfilling its obligation to the Iraqi people for the harm and suffering it has caused. We are making things ever worse for the Iraqi people. Our first obligation is to stop harming them. We should then pay reparations.
Arnove does not make his case for immediate withdrawal contingent on persuading the United Nations or any other group to take over. He argues, and argues well, that the Iraqis themselves can best handle the rebuilding assuming we liberate them from our liberation:
Recognizing that being right is not always enough, Arnove offers advice to the anti-war movement based on what worked during Vietnam. Among other ideas, he suggests making civil disobedience part of mass demonstrations rather than smaller efforts the next day (as was done in DC last September).
Arnove also points to electoral politics and suggests that we will never end the war as long as we support pro-war candidates. "The U.S. left made a terrible mistake," Arnove writes, "in supporting the presidential campaign of John Kerry, giving up its independence and political principles to support a prowar candidate. Kerry called for sending more troops to Iraq, insisting that 'it would be unthinkable now for us to retreat in disarray and leave behind a society deep in strife and dominated by radicals.' Kerry also asserted that he would still have voted to authorize President Bush to invade Iraq even if he knew [as of course he DID] Iraq did not have weapons of mass destruction, a position that he only clearly retracted after losing [that is, coming close enough to have it stolen] the election."