It's important to note that Iran is not as monolithic as a lot of individual have commonly assumed. Only around
61% of Iran is Persian. Part of the reason the IRGC is so good at asymmetric warfare is that is also has to, frequently, police within its own borders to prevent Afghanistan levels of tribalism. For-instance, According to
some sources, around 90% of those killed in the 2022 protests were minorities within Iran.
The issue going forward is, even if the Persian minority also hates the Mullah's and would like to return to a more western country, how do they view the almost 40% of the country who are not Persian and would like more autonomy? I think that is a critical question for deciding what to do moving forward.