With President Trump behind them, this would be very bad juju for the Turks should something go awry.
I wouldn't be so sure, There's that old NATO membership problem, Turkeys still a member, there has been no punishment from NATO or the US for decades of anti democratic, violent, menacing, corrupt, criminal and Jihadi activities on Turkey's part, especially lately.
Erdogan could care less, the safest place for US troops there is as far from Kurds as they can get.
The only losses that Turkey will suffer will be extracted by the Kurds themselves, without support.