Ahvazi Arabs are a minority in mainly ethnic Persian Iran, and some see themselves as under Persian occupation and want independence or autonomy.
THIS is what happens in racially/culturally/religiously diverse melting pots. Diversity is a weakness that is both fostered and exploited by the enemy. Today, when hordes of third worlders swarm [former] White Christian nations, it is a prelude to destruction. As the Bible says in the parable of the wheat and tares... "an enemy has done this."
Shi‘ite Muslim Iran accuses its main regional adversary, Sunni Muslim Saudi Arabia, of funding separatist groups active in Iran, a charge Riyadh denies.
Yup... this is text book.