Iran also promised that we were going to be non-existent. I don't see us doing too much about it.
Any thought of Iran nuking Israel is ridiculous. I would think the first reason is if Israel is nuked, the Palestinians will also be destroyed, since a nuke hitting Tel Aviv will also have a severe impact on the West Bank and Gaza.
As of yet, I don't see the Palestinians having any concerns about being wiped off the face of the earth by their sponsors.
In addition, the Jordanians, Lebanese and Syrians don't seem to be complaining about the thought that they will also lose thousands of people from radiation sickness and god knows what else.
No, Iran having a nuke just makes it easier for a conventional war because it neutralizes Israel's nuclear capabilities. And if Israel isn't willing to inflict collateral damage, then Israel will not exist, because their enemies already proven that they will attack cities.
"Any thought of Iran nuking Israel is ridiculous."
And the other way around too. If they were really planning to do that, first of all they wouldn't write about It in their own newspapers.