Yes. They do.

But they believe dying for their God. Especially in the process of killing infidels is the Holiest thing they can do. That and portraying the world as being against them unfairly domestically is probably one of the few ways the Regime is clinging to Power.

Frankly they’ve had numerous wide scale periods of unrest. Defections to the Protesters from among the IRGC. Which is essentially the paramilitary Regime stormtroopers who do the bulk of Civilian intimidation and Riot Suppression. Iranian Regular Military loyalty is reportedly increasingly suspect. As is the Allegiance and Loyalty of whatever passes for Civilian Police there. Allegedly protesters were allowed into secure installations during some rounds of unrest by inside men. Resulting in the disappearance of Military Hardware and Weapons.

There’s alleged record numbers of Christian Converts creating an extremely sizeable Christian Minority.

Tensions with various ethnic Militias particularly in Rural/Mountainous regions have been flaring. Partially believed fueled by infusions of foreign Money and Military support from both Western and Nonwestern sources.

Public Broadcasters and Propagandists have broken from approved Regime talking points live on TV and subsequently fled the country.

A group allegedly comprised of Current and Former Iranian Military, Police, and National Security Forces. Has allegedly claimed responsibility for numerous acts of sabotage of Government projects. Though it’s strongly suspected aforementioned group is a front for foreign intelligence.

Their domestic situation is tenuous. But they much like the Chinese can’t and won’t show weakness on the international stage