The US doesn’t let dual citizens just fly away when charged, why should China?
Source?
For your passport to be surrendered, you need to be charged with a crime. Being related to the accused isn’t a crime. (The black eye that is Guantanamo notwithstanding.)
More critically, many of these people have been charged with nothing. No process is pending. They are held with no next steps. There is simply no analog for this behaviour in countries with the rule of law, whether that be Taiwan or Japan or Germany or the United States.
One doesn’t. Gitmo is a black eye on our judicial system.
But there is a difference between a widely-debated exception and a generally-accepted baseline. Gitmo is abnormal in America. It is a baseline for Xi’s regime.
It is in every sense an anomaly, and is not even remotely comparable to what is discussed here.
Due process would be served if they are being charged.
TBC, it’s not like all the people in gitmo got their due process but still, either charge the kids or* let them go.
Detaining the estranged daughters of a suspected fraudster is not due process. It’s the sort of shenanigans that make Chinese courts the laughingstocks they are held to be.