Even if we discount (at Israel’s peril) the genocidal statements, coming from some of Iran’s more bellicose or just plain nutty leaders, there is still the very real and dangerous fact that nuclear weaponry would give Iran complete hegemony over the gulf.
This in turn would give it a foot on the neck of the West’s economy for the foreseeable future.
Iran will need this power to arrogate wealth to itself. Its economy is currently on a collision course with reality as things stand.
Few people take into account that things look so bad for Iran, currently, that it cannot afford to give up its plans for economic hegemony over the Gulf via nuclear weaponry.
Even the ‘realists’ should be able to see this reality.