I find myself in the unusual position of agreeing with Fink on a geopolitical issue.
I'm not handwringing over this. If it escalates to war, that will be the Iranian's decision at this point.
What Trump did is reassert the deterrence factor. That deterrence factor became impotent when we started kissing Iran's ass and sending them pallets of cash in order for them to pinky swear they won't build a nuke. Pallets of cash that then went on to fund terror actions against western targets.
It was very naive to make a deal with a country that promotes a theocrat ideology.