They left because they fulfilled their purpose, not because its haram and against their deen. The grand mufti of Saudi Arabia, ibn baz, gave a fatwa that it's completely halal.
I will leave it at that, i don't expect someone to change their views after being indoctrinated for 18 years.
They left because the saudis told them to leave. The americans decided to use bahrain and qatar for their ME bases as a result. Go read a book sometime.
Still waiting for 5 things the ulema changed from the sahaba.
But hey i have a feeling i will wait for a long time for that. In any case there are many things to bash saudi arabia for. You just consumed by the obvious think tank thinking to see it