The Iran situation only ended because America got involved. Israel was running out of air defenses and couldn’t establish air superiority over enough of Iran to stop Guerilla style launches despite getting air superiority early on due to their initial surprise opening. Even before we “got involved” with the bombs, most of the missiles that got shot down were shot down by American systems iirc.

If the US ended support, Israel would have no choice but to capitulate and stop being a genocidal apartheid always picking fights in the region, or to activate the Samson option.