It's definitely illogical to enrich materials to nuclear grade and invest immense amounts in bunkers with centrifuges while saying you don't mean to have nuclear weapons.
No, those are both rational actions in this case. Iran getting nukes is less dangerous than only Israels current nukes. If both Iran and Israel had nukes, the region might have a chance at peace.
The Iranian regime would absolutely use nukes as soon as they have two or more weapons ready. Just as they have launched countless attacks against civilian areas in many of their neighbor states in the past 2 weeks, including several nations that have prohibited any use of US military installations or their in their country or their airspace as part of this campaign.
If Iran's regime had nukes, I guarantee you'll see UAE, Saudi Arabia, Qatar and several others go all in on their own nuclear programs immediately. They'd be fools not to.
Israel's nukes are troubling, but the weird "nuclear ambiguity" doctrine has already stood for so long and managed to avoid nuclear flare-ups so far. I'd still like them to not have nukes, but they won't be launching any nuclear first strikes for sure - since we've seen them not do that even while fighting many major wars and suffering losses without taking that step...
If Iran had nukes it would nuke Israel without any consideration for Israel's nuclear retaliation because in their thinking becoming a martyr in the course of killing the infidels is a good outcome.
The region will have chance at peace once the regime of Iran is removed.
