This thread will clarify the situation within a framework that we have successfully used to analyze western politics (deep state, overton window, demographics)
Every mainstream Regime approved politician in Iran publicly professes fealty to both Republicanism and Islamism.
The Iran-Iraq war in the 1980's caused huge casualties in Iran. Over a million people died. The Mullah's incentivized large families in an effort to rebuild the depleted population. Today=huge youth population