That's a myth. Iran is Shia. Sunni and Wahabism are the terror ideologies. Alqaidae, ISIS are all these Arab groups with extremist ideologies. The Hezbollah and Hamas are primarily based on fight against Israel. They have no interest in Caliphates etc. The fight against Israel is more than justified. Jews were allowed to live in Palastine lands by Muslims themselves out of humanitarian needs when they were hunted down by Hitler in Europe. The Zionist Jews then chased away their patrons with help from US and established Israel, and is still expanding. Israel should not have been their in the first place.