The Iranian regime has been at war with the West for nearly 50 years. They are fanatical apocalyptic Twelvers. If they get a nuclear bomb they will use it.
Iranian leaders been fully invested in obtaining a nuclear weapon for decades and have never stopped. They play the West for fools while doing exactly as they please. "Okay, if you give us this and that we will hold off on making a nuclear weapon. For now." Enough with the BS. Arrogant idiots like Obama and Valerie Jarratt actually gave them billions in bribe/protection money. And they turned right around dumped it into their enrichment program and sent the rest to terrorists all over the Middle East.
Also, if there are sleeper cells imbedded in America they have been here since before Trump was reelected and Iran sent them here fully intending to use them when the time was right. (This itself would show they have already been at war with us.) I think people need to stop acting as if terrorists only react and are never proactive. They are not rabid dogs who will leave us alone if we just keep them happy and don't antagonize them. They want the Twelfth Imam to show himself. And they intend to make it happen.
They had to be stopped. This was the last chance. And we were the only power capable of doing it. No, I don't like it. But all the other choices were worse as they involved a nuclear armed Iran.
They believe in martyrdom, and what better way to achieve it than creating a nuclear cataclysm? Especially if ushers in their Mahdi. Believe them on that issue because they absolutely believe it.