Why doesn't the left realize that leaving Iraq prematurely, will cause more harm than good?

Do they not see that leaving now will just cause more civil war which will be utter pandemonium. You can expect turkey to move in and annex kurdish territory, syria from the west and iran from the east to do likewise. Whatever happens, oil prices will reach record highs and while you may not want to fight a war over oil, this is over oil and if we lose, the high oil prices will have a toll. High gasoline prices (record highs maybe double), will cause poverty which will cause crime, homelessness, and terror. Leaving could be the catalyst to apocalypse.