Turkey won't return anyone. Turkey recruited Uighur mercenaries (among others) into its irregular Idlib, Syria adventure, which incidentally NATO has had no problem ignoring, because of course Assad must go, and there are only muslim ethnic minorities trying to live their "best lives" in Xinjiang. To borrow a phrase from Florida's finest, they "want them to be victims."

"De-radicalization" is a figment of authoritarian Chinese minds.