It's a one man's trash another man's treasure thing -- Erdogan regards the Kurds (not just one faction, because the factions have been much better at cooperating since the Shah fell, ironically) as terrorists; it's not dissimilar to the narcoterrorists killing their way in the southeastern US. Erdogan is one of perhaps two Islamofascist leaders in the Middle East that is better than whatever will follow (the other one being the twerp Hashemite king of Jordan). Furthermore, Turkey's in NATO, and NATO is the best option we've got to keep the bloodthirsty mass-murdering imperialist criminal regime in Moscow from overrunning the Earth.
That said, I support the creation of Kurdistan, but it'll have to start in Iraq and Syria, which are already failed states -- thanks to Iran.