I don't recall that the Iranian government has recently agreed to the obliteration of all Iranians.   The Iranians are not about to commit suicide. It's just rhetoric. The Soviet Union (remember them?) continually threatened to obliterate America -- never happened. Why? Because they didn't want to die. Same with the Iranians.   The whole Iranians threatening Israel is nonsense. Nuclear weapons are a deterrent (hello?).   What the Israelis and the Americans are unhappy about is that the Iranians would have a little freedom to manoeuvre, threaten, pontificate, etc. Meanwhile, the Israelis -- and the American government right now -- are actually threatening the Iranians ("nothing is off the table" continues to be reiterated), because they can.   They don't want to lose the right to threaten the Iranians. The Iranians of course have no right to threaten anyone.   

yours,

Peter T.