No, they don't. It's an existential question versus inconvenience. Trashing the KSA could be spun as a national security or human rights decision.
> the oil market is world-wide
Trashing the KSA would be expensive, but not catastrophic. Rising oil prices would help American exporters. Furthermore, we have laws on our books to ban the export of crude; WTI could be low while Brent soars.
My fundamental point is that American influence over the Saudis shadows any Saudi influence on America.
US policy is set by politicians, bureaucrats, and military leaders. And STC has them well into its palm. That's why the STC can attack us on our own soil, kill thousands of us, and get thanked and rewarded by our leaders.
Interest rates are stupidly low now, borrowing trillions has never been easier. If they get as high as they did in the 1980s there will be blood in the streets.