Israel has their own arsenal. Iran knows it. Iran if they dared detonate a nuke on Israel would be hit with multiple Jericho IIIs which all carry warheads basically in the same range yield as our MM3s (roughly 450kt). Its the bigger picture that you have to look at.. KSA has said clearly if Iran gets nukes they will have their own and it wont take long. The Arab world wants the Mullahs gone because an Iran with nukes would destablize the whole damn middle east and likely spark a nuclear arms race among literally the two of the biggest crude oil exporters in world. Yall think the price of oil and gas is bad now. it doesnt end well if Iran and KSA nuke each others oil fields which would be the likely scenario if they got into a shooting war.