Government leaders are somewhat helpless.
IMO non muslim religious leaders are shirking their duty by not speaking out loud and clear about the satanic, demonic teachings of Islam. It would have a profound effect.
In terms of Iran, there is nothing left to talk about with 7th century lunatics dedicated to forcing their insane brand of an international caliphate through unthinkable broad-based terrorism. The jihad promoting régime in Tehran is on borrowed time.