Iranian here, you're missing an important point: we're a nuclear threshold state. Meaning we can build weapons in a short manner if need be.

This is the reason the security counsel refuses to give up any of its uranium.. and to be fair, I've had a change of heart regarding this. I think the only true deterrence against a nuclear power state is nuclear weapons. It assures at a minimum that your country won't be nuked.

A big reason why Israel hasn't completely destroyed Iran with nukes is the fact that it's a small country and Iran can take it out. Israel having nukes is also another reason why Iran isn't hitting them as hard, it's to avoid backing them in a corner.

I think that after the current Russia / Ukraine and Iran / US war, it's becoming very apparent to many countries that your nation is only secure if you have nuclear deterrence.