Iran was secular under Mossadegh until our CIA ousted him in the early 50’s. The brutality of the Shah led to the Islamic revolution. Just like in Afghanistan and Iraq, it took our intervention to screw things up. Kabul was known as the Paris of Central Asia from the 30’s well into the 70’s. Women wore miniskirts there before our CIA sponsored mujahideen had their way. Again and again we turn advanced societies into failed states because we didn’t like their economic model.
There are a lot of good, well educated people in Iran. They have the same amount of control over their government that I have over mine. The majority are NOT religious fanatics.