With respect, High and Mighty Site Owner, it was never about weapons of mass destruction. That was merely a sales pitch. All along, it was about limiting the rise of Iran as a regional power, something they were doing long before 9/11. The idea was to forcibly convert Iraq into a regional front for American and Western interests, and use them to roll back Iranian expansion.When it was launched, I supported it. But that was largely on the WMD threat,
Personally, I don't know who to cheer for, so to speak. I cannot endorse the unprovoked invasion of a sovereign state, but at the same time I can safely say that a world with expanded American interests is probably a better place to live in than that same world with expanded Iranian interests. If the Bush administration had not botched the post-invasion period so badly, I might be behind them most vigourously today. But they didn't, so I'm not, and you're correct. It's a lose-lose situation, and they lose the least by leaving Iraq ASAP.
The biggest loss is not a surge in terrorist presence, or anything like that, it's the loss of American regional interests. America is no longer seen as a reliable ally in the region and for that you'll have Middle Eastern countries turning to China and Russia for aid in the future.