LOL.
Tell me, how are we just going to "lose" our Middle East oil supply? You figure OPEC will decide that they no longer want our money and will instead sell it to someone else?
Get real.
Well, we had Saddam invade Kuwait, the Iranians and Israel acting all froggy and the rest of the region isn't exactly "stable". Plus we have already had an instance of us losing our ME oil supply.
Contemplate this, how much easier would it be for Iran to significantly hinder oil flowing through the straight if we had no .mil presence there at all.
Or perhaps your right, we just like invading countries, rebuilding them, and then giving them back to their people instead of keeping it...