I see it differently. No 3rd world country develops a nuke to send it off in a baby carriage, it is used for leverage and deterrence.

Do you think we would have turned Libya into a hellhole if they were nuclear armed?

How about Ukraine? Would things look different had they not surrendered their weapons? (never mind they were foolish enough to trust the US would honor its commitment to defend them).

Would we have started the ill conceived war with Iran if they already had a nuke? It would serve them not at all to start sending suitcase nukes around the globe. You can call them "terrorists" but the term has become a meaningless epithet to hurl at folks you intend to harm.

Iran is a country of 90 million people who would want to be left alone. Iran would certainly be a much better place had we never started messing with it going back 75 years. And had we not been so faithless as to attack them in the middle of negotiations, (see Pearl Harbor), we might have had some basis to rebuild trust. That ship has sailed.

They supply arms to groups we don't like? Well, tell me who isn't an arms supplier? We are the emperors of terror if that is your criteria.

I would prefer no country have nuclear arms. But Pakistan does. India does. PRK does. What are we going to do about it? We could start by stop being the international provocative CIA fueled shitheads we have been.