They house and fund terrorist figureheads. They are being used as a buffer and divider of muslim allegiance against Iran. They are also shareholders in various companies around the world. If you want another 9/11, go ahead.
The only thing that can stop this is to have ALL other countries slam the door. Problem is, the muslim world will unite and we will have another crusade vs jihad on our hands. That's why we are currently in a situation right now, kinda like the Cold War where nukes can end the war but nobody is willing to so we play other games. The Cold War also taught us another way of ending this farce: economic collapse. However, arab oil ain't endling so soon and they're doing steps to mitigate its damage like oppression, immigration, etc.