Erdogan is a dangerous lunatic and the EU should impose sanctions upon for his threatening behavior.
Turkey is not a real ally of the West and we should consider revoking their NATO membership. We should continue to increase arms shipments and other military aid to the YPG and covertly do whatever we can to sabotage Turkey's relations with Russia.
This has just utterly gotten out of hand.
"Let's f*k with our enemy by giving weapons and aid to the rebel group they're fighting" gave us Al Qaida.
I've been always highly sceptical about ideas like this (putting this mildly), but I don't see a parallel between Al Qaeda and the YPG.