There's a Kurdish army over Iran's borders. The IRGC calling the shots in that region?

Literally within the area under the Kurdish army? Perhaps not. But I don't think that matters, strategically, to the question of whether the IRGC is still in control of Iran - having a small remote area at the very edge of the country home to a restive minority with aspirations of independence isn't ideal for any country, but not really a meaningful indicator that the national government is about to be displaced.

Very little.

Sure, okay.

Yes, seriously. As I mentioned in the other thread, Libya's been riven by civil war for a decade now - but the Libyan security forces still get paid. Imposing an economic cost on a country can inflict a lot of pain on a lot of people inside that country, but in a military dictatorship that economic pain is going to land on the military itself last. You can't cut the IRGC off from being able to pay its people by hitting Kharg Island.