Trump also didn't go around trying to drum up support for Iran. His attitude going into the war was "I won't let anyone butt in to steal credit for my impending glorious victory." It only turned into "how dare our allies abandon us!" once it turned into a quagmire/loss, at which point it would have been a tough sell under better circumstances.
I still agree that everyone is pulling away and for good reasons, prominent among which is being pushed/shoved, but I also can't stand to see Trump's victim narrative gain traction when he chose to go it alone for the dumbest possible reason.