You assume - based on nothing - that it has EVER been our policy to try to get out. This is not a failure of the State Dept somehow. That is not fair...they have never been tasked with trying.
We should be deterring Turkish assaults on the Kurds, not encouraging them. We should have made it clear that any attacks on them will result in a penalty from us.
Instead we have given the Turks what they have longed for: The A-O-K from us to slaughter their enemies.