I am torn, actually.
Ultimately, all military action is taken, ultimately, in the "national interest", which, of course is a moving target, with a strict cost/benefit hypothesis on the action being performed. (ie. it was little enough risk to kick Saddam out of Kuwait to protect our interests there, but TOO much risk to do the same to the Soviet's when they "illegally" invaded Afghanistan).
How much suffering would happen in this country if the scenario (albeit completely hypothetical talking out my ass) I detailed earlier were to come about, where neither Saudi Arabia, Iraq, Iran, Syria or any other oil producer would do business with us? Wouldn't it be complete economic meltdown? Gas lines forever, planes grounded, trucks not moving, pretty much commerce halted? Unemployment at historic highs, poverty like we haven't seen for a century - only the rich having the means to afford any fuel, that wasn't confiscated by the military?
Is THAT worth going to war over?