I’m not sure I would characterize Iran’s efforts as destabilizing the region, certainly not more than the US injecting billions of dollars of arms into the region.

Really we’re in the endgame of fossil fuels, and arguably control of access to those resources that was the main reason that the US was so heavily involved in that region for decades. But with the green revolution needed and pragmatically quite close in reach, the US needs to fundamentally rethink its involvement.