We cannot allow Iran to develop a nuclear weapon. Absolutely not.

I don't disagree with the problems you have outlined. But, for several reasons, we can't do anything about it. If you want a kinetic response, we have depleted our stocks of missiles and bombs. Plus, I doubt that would work. Hasn't so far. In fact, the Houthis have gotten in on the action, and are attacking the Strait, also. It is too easy, and too cheap, to send a lot of drones to create some havoc. Any crackpot group with a grudge can have a disproportionate effect on events (e.g. Strait of Hormuz).

We couldn't stop Pakistan getting nukes. We couldn't stop DPRK getting nukes. We won't be stopping Iran, either. Not without drastic actions that will lose you the next election (so nobody would be willing to do it). You willing to drop a nuke to do it? Didn't think so. Few people would be.

Just walk away. Come at it from a completely different angle. We should probably dust off our regime-change playbook. We did it several times in the past (including in Iran, ironically). Behind the scenes, sowing discontent, and then at the right moment drop some FP45 Liberators, and let the people change the regime. That's the only way it will work.

We have to get asymmetric, just as they are. Otherwise, it's just another Vietnam, Afghanistan, Iraq...lots of bombs, lots of dead people, nothing really getting accomplished.