> They absolutely might nuke us.

Iran, while they do have a pretty shitty leadership, have not historically been starting hot wars. They have proxies yes, but they haven't invaded anyone to conquer territories in recent history.

While would Iran do something that results in their destruction?

You are comparing them to Hilter who had taken over almost all of Europe, and had motivated the nation to take over those other countries. Nothing of the sort is happening in Iran like that. Iran has historically been defensive in its military spending and investments -- excluding the proxies it has funded.

> History teaches we shouldn't play with such fire.

I feel you are not viewing things as they are, but are imagining things based on faulty reasoning.