I agree, it would be hard to stop Iran from producing a significant number of long range drones (hard to stop it from getting the parts it needs when it route them through the Stans or the Caspian sea).
Note that neither Ukraine or Russia have air supperiority. It would be much harder for IRGC to build and launch hundreds of drones with basically predators stalking the sky & strikes from manned jets availalbe on short order.
Until the ammo runs dry, those birds in the sky need something to fire, and contrary to what dear leader says, we don't have a forever supply and usage is significantly above production.
I don't think it is realistically possibly to run out of JDAMs.