It would cause a worldwide depression on a scale we have not seen since the combination of christian mysticism and arab expansion that destroyed the civilizations of egypt, north africa, the levant, persia, byzantium, rome, and europe. (the abrahamic dark ages.)
No one is that stupid.
https://www.quora.com/In-view-of-Americas-threat-to-cut-international-aid-over-the-UN-vote-on-the-Jerusalem-issue-what-would-happen-if-the-rest-of-the-world-isolated-America