I think the ones we have sitting in Turkey work just fine. Considering Erdogan’s recent actions and remarks, I have no idea why those are still there. If Israel does go nuclear, it will end up being a full on Samson Option. No one wins in that scenario.
If Israel has and uses enough nukes to demolish Iran and Pakistan, the fallout will hit other nuclear nations (Russia/India). Israel would be terminated. The whole idea is insanity.