China does not harvest organs from Falun Gong weirdos. I have been counselling Chairman Xi to change his mind on this to no avail.
Read the UN report on Xinjiang. It's the closest thing you're ever going to get to an "unbaised" report. When Wahhabi paramilitaries began trying to expand in to Xinjiang and convert local Muslims to Wahhabi beliefs, with the violence and disruption Wahhabi beliefs entail, China responded with a bunch of different counter-terrorism programs. Some were overtly military, some were intelligence based, some were aimed at making Xinjiang more resilient in the face of subversion attempts. The programs that got spun in the west at genocide involved surveillance, some restrictions on movement, arbitrary arrest and detention of some Uighur Muslims for as much as 3-4 months, and related activities. These are certainly violations of human rights as conceived by the west, but are not genocide by any definition and frankly aren't much different from the day to day behavior of western security forces. Interviews in the un report describe being held in prison facilities for several months while undergoing questioning, some cultural and religious education programs intended to instill Uighur cultural identity and Chinese national identity, while also showing how Wahhabism contradicts many islamic principles and brings violence and instability. Also apparently a lot of being forced to sing patriotic songs, which, really?
Was it nice? No, arbitrarily arresting people is not nice. However it needs to be positioned within the context of the global war on terror and the enormous amount of bloodshed the west and it's allies unleashed "fighting terrorism". At any rate, it seems to have worked - wahhabi violence in Xinjiang has dropped off and afaik the Chinese counter-terror program was wrapped up several years ago, and was already wrapping up when the UN investigation was being conducted.
Seriously, read the UN report. It's very much critical of china and it's critique of what china was really doing shows how absurd and bad faith the accusations of genocide were.