My favourite claim is one that the UN has used to push the "millions of Muslims in concentration camps!" thing is literally a report by an American-based Chinese think tank who went to rural Xinjiang, then found one person in eight villages (for a total of eight people), then asked this one person how many Uighers they thought lived in the town before the re-education program, and how many had been taken. They took the numbers from these eight random folks and then extrapolated it for the entirety of China.

I don't doubt there's some shady shit going down, and definitely some human rights abuses, but the scale is incredibly exaggerated.