Actually, I've stated here on CC at least three (3) times since Trump was elected that the idea of walking away and leaving the Sunni Arabs to fight the Persian Shi'as over who should succeed Muhammed would be an excellent idea.  

We can rely on oil at home and in Canada and if the Europeans want the Middle East oil, they should get it themselves.  That's what the Obama support of the war in Libya was about, after all.  

Israel has submarine-launched nuclear missile capability and we can resupply them if necessary to meet that treaty obligation if we want.  

As a last resort, we can turn the Middle East sand into glass and the Europeans can pump the oil out through the glass.  (Any Persians or Arabs would just be discolorations in the glass.)  "Nuke 'em 'til they glow; then shoot 'em in the dark"! as an old Platoon Sergeant of mine once said!  

US Presidents have been going down on their knees for the Saudis  long enough.  

Equal disdain; you bet!