Wouldn't that be preferable to explaining how we're going to devote more trillions and God know how many lives to propping up the corrupt and brutal regime that's running Iraq now? The one who destroyed their own military and whose own people won't fight for them? Admit the mistake and cut the loses, don't go running down the same doomed path.
With b), you don’t s**tcan a long-time ally and NATO partner to get back at some thugs in pickup trucks.
Every day in many ways Turkey under Erdoğan shows that they are not the ally they once were, and are in many ways working against our interests. So if the relationship is dead or dying it was Turkey that did it.
I say the preferable option is more or less what we’re doing now—mostly nothing. Some intel/airstrikes. I would say no more free weapons to the IA, though that would invite Iran to start supplying them with weapons which would further codify that incestuous relationship.
That whole region is a disaster.