The livelihood of the Saudi Kingdom is intrinsically tied with the West and the livelihood of millions of workers from India, Pakistan, Bangladesh, Philippines etc is tied to the economies of the the GCC Arab countries. America sits in a commanding position where it can seize literally hundreds of billions of dollars of the GCC Arab countries' assets--just like America did to mighty Russia--and there would be nothing the GCC Arab countries could do about that. But at least Russia was a military power and with unmatched natural resources; so Russia, though bloodied, picked up the pieces and used its considerable human and natural resources, with the Chinese help, to absorb the shocks of the Ukraine war.
There is absolutely nothing preventing America from inflicting grave damage to the GCC Arab countries financially, and even militarily, if it comes to that. And the actions of the Americans would cause untold misery not only in the Arab countries but also in those poor countries that I mentioned above.
The forum can get carried away with grand ideologies and idealism but those who are responsible for the lives of not just their own but also of hundreds of millions are NOT going to sacrifice all for 5-7 million Palestinians. The rulers tried that-- especially in King Faisal's time--but they failed. They couldn't succeed.
It is only Iran and its proxies, who have some very favorable conditions behind them, who are able to stick their necks out for the Palestinians.
So please get out of your race based world view and think geo-economics.