I’ve said it before, Iran is almost a “token” Islamic country, and they’d rather NOT BE.
They are very moderate, very interested in western culture, history, and ideals, and are way more “European” in their outlook than they are “Arabian”.
You are right. In fact most Iranians are not Arabs at all.
They are Aryans in background.
The result of almost 60 years of Westernization by the Pahlavi Dynasty. Even 30 years of Mullah tyranny couldn't eradicate the secularization, westernization and modernization that has taken place in Iran, despite all regime attempts to "islamize and arabize" society.