Many redditors have noticed the recent trend in the news and posted their observations and researches. Please search for "Adrian Zenz" in the comments of these Reddit posts:
https://old.reddit.com/r/worldnews/comments/ixjuq2/china_for...
https://old.reddit.com/r/worldnews/comments/ixhd7x/china_sha...
Edit:
Some articles that also shed some light on this topic
https://thegrayzone.com/2019/12/21/china-detaining-millions-...
https://thegrayzone.com/2020/03/26/forced-labor-china-us-nat...
Edit 2:
Here is an interesting video of the author (Max Blumenthal) challenging Adrian Zenz in person on Capitol Hill
https://twitter.com/MaxBlumenthal/status/1208837915687706624
A youtuber Daniel Dumbrill's interview of Max Blumenthal:
https://www.youtube.com/watch?v=8KLIfu6y2Bc&t=2240
Daniel Dumbrill also did some research:
https://twitter.com/DanielDumbrill/status/120052278677241856...
(BTW Dumbrill's travel videos are pretty cool)