Your point is well taken. But if I new US and Israel had not started a war in the past 250 years and that I had the largest nuclear arsenal in the world and I spent more on my military every year than the next 13 countries combined, I wouldn't worry about their hollow chants that much at all. They can chant death to this and death to that until the cows come home. They only make themselves look like idiots and justify my REAL aggressive designs towards them in the eyes of the world.
Now imagine that Iran had occupied both Mexico and Canada, had her warships all around the US, had blocked all the countries in the world from making banking transactions with the US, and stopped US from selling its goods abroad, was causing medicine and food shortages in US, had even "accidentally" shut down a passenger Airbus plane near US and given the ship captain a medal after he returned to Iran, imagine Iran had a militarily attacked over 50 countries after WWII, the Iranian secret service had been involved in assassination plots of over 40 world leader since 1950's including Mossadegh, Che Guevara, both Castro brother, Salvador Allende, Jawaharlal Nehru, Patrice Lumumba, ..., imagine if Iran had overthrown a democratically elected US government and installed a military dictator puppet to rule over US for 30 years, imagine that Iran had killed 3 million Vietnames in a war over a bogus reason that had turned out to be lie afterwards, imagine in Iran had gone to war in Koreas and killed/injured over 4 million people most of the civilians, imagine if Iran had developed the first nuclear weapon and used nuclear weapons on civilian population in a war it knew was going to end anyways, imagine if afterwards Iran had sent her scientists there to study the effects of radiation on humans, ...