I seem to have to tell people this twice a day nowadays.
Ignore EVERYTHING Trump says.
listen to everything Trump DOES.
They are two very very different things.
Regardless of what he DOES. It's worth almost any price to make sure Iran never has nuclear weapons, up to and including a ground invasion and mild recession.
Iran nuking Tel Aviv, which they absolutely would, would destabilise the planet for the next 50 years. This short term pain will be worth it if it all works out and it probably will.