Why is it ok for North Korea, Russia, US, China, India, Pakistan to have nukes but Iran can’t? If a country is regarded enough to use one they are signing their own death warrant.

Even if Iran had a nuke, why would they nuke Israel and contaminate the holy land they are trying to liberate? They would make it uninhabitable for a very long time, kill millions of Palestinians and destroy Al-aqsa mosque which is for third holiest site in Islam.