Then you didn’t do your research properly, Uyghur have concentration camps built for them in the last 5 years [1], women were sterilized [2] cultural destruction and forced labor [3] or rape [4] or even selling their organs like hair [5] or tracking Uyghur outside China [6]
The thing about oppressed minorities is if you are not a minority, you won’t know it exists in your daily life (in this case, you are not an Uyghur), and with a big propaganda machine, a quick search won’t give you any accurate results, have you tried visiting that region, meeting with locals and try to investigate?! Most likely you will be kicked out by the government in no time if you did. Sure, other governments around the world did the same or worse like what you mentioned, but that doesn’t give an excuse for such thing, or being passive about a massacre as in “it is not coming from nowhere”..
[1] https://www.bbc.com/news/world-asia-china-22278037.amp
[2] https://www.bbc.com/news/world-asia-china-53220713
[3] https://www.bbc.co.uk/news/extra/nz0g306v8c/china-tainted-co...
[4]
https://www.rfa.org/english/news/uyghur/genocide-select-comm...
https://www.aljazeera.com/news/2021/6/4/uighur-tribunal-hear...
https://www.bbc.com/news/world-asia-china-5579407
[5] https://www.cnn.com/2020/07/02/us/china-hair-uyghur-cpb-trnd...
[6] https://time.com/6160282/arab-world-complicit-china-repressi...