There is a reason for them not wanting him to return. I do no know if UAE will extradite him if he does not want to come back when he needs to for the sentencing.
https://www.reuters.com/technology/ex-binance-ceo-zhao-urges-judge-allow-him-leave-us-before-sentencing-2023-11-24/
The sentencing of CZ is to go forward in February 2024 and it's a long time away form home specially on this cold and festive season.
I'm not sure about what the motive was for a backdoor and CZ really is a con man or if US just wants to extort and destroy a Chinese business, which they shamelessly do.
He was a twitter celebrity but I didn't much cared about him anyway. I just hope I get some spikes on price of BNB so I could dump them all before the sentencing. I'm not in much loss but it's alleviating to sell on green.