this is definitely the most important thing happening.
The people who have to go to the vocational schools are people who participated in separatist activities, up to and including actual terrorism. Western media has created a lie (like they often do) that every Uighur in Xinjiang is now in a concentration camp (lol). Completely baseless and incomprehensible.
It is really on the media outlets to actually provide evidence for their claims, but I know what you’re asking is to learn about the opposing left-wing view. I never have a good summary link on hand but I found this one: https://thecommunists.org/2019/12/31/news/blatant-hypocrisy-usa-lies-about-china-uighur-muslims/
Ultimately western propagandists can come up with new lies all the time that require reading to debunk, but you can usually tell how flimsy they are because they cite no real evidence other than western authorities, or rely on “research” from people like Adrian Zenz.