Even the "million people" detained statistic is incredibly misleading. When you look at the original actual paper that conducted the investigation, it's about the total people who were ever detained, most of which are released after their mandatory reeducation is complete. However, western journalists intentionally make it sound like 1 million people are currently being detained.

Whenever BuzzFeed or any news company talks about ICE detention or US prisons, they make it very obvious when they talk about current people being detained and the total population that had been detained.