No Trump did not authorize the Turks to attack the Kurds, he just got our people out of the way of an attack he knew was coming.
The Turks were going to attack anyway.
Not quite that bad then but still basically saying he is OK with the Islamist Turks invading Syria and slaughtering Kurds?
Now if he withdrew US troops and told the Turks to stay out of Syria or be hit with US missiles, that I would understand.