When the oil runs out, so they no longer have influence over the rest of the world, and the rest of the world has no interest in them. Afghanistan may not dire

When the oil runs out, so they no longer have influence over the rest of the world, and the rest of the world has no interest in them. Afghanistan may not directly have oil, but it plays into other things. It's a symbolic point for both the Muslim world and the outside world. Militancy is funded by Saudi oil money. Invasions are funded by the US (and previously, by the Soviets). Pouring billions of dollars of outside money into resource/cultural wars in otherwise poor and isolated nations turns them into nightmares. Afghanistan is just another tumor in this cancer.