OTOH, the west would probably support any kind of stable government there. KSA doesn't have seem to have much else other than oil, so they would have to coopera

OTOH, the west would probably support any kind of stable government there. KSA doesn't have seem to have much else other than oil, so they would have to cooperate as well. Foreign support may provide credentials to the ruling family, but in the end it's the citizens (or in their case, subjects) that define their collective fate.