So I know there's no "genocide" going on, and that the facilities are there to mitigate the real threat of terrorism in China, and basically every claim Western news makes about it is some Grade-A bullshit, but...

How many people are in these facilities at a given time? My BF claims it's gotta be at least 5% and that seems hella high to me. But if I google, all I get is Zenz bullshit, or people discrediting Zenz bullshit, but no real information about how many people are actually going through the reeducation/vocational training that China is doing. Does anyone have any good sources? Particularly for someone who is critical of Western news but considers Al Jazeera and AP as the pinnacle of journalistic credibility?

It's easy to discredit bullshit, but he's really caught up on knowing the real numbers here and "all your sources are straight-up lies" isn't gonna fly here if I don't have a counter-offer.