We don't know how many people have died as a direct result of Chinese internal policies and we likely never will. They certainly cannot be believed with any statements about human rights, imprisonment, or executions on any level. I would likely extend that to education due to rampant cheating and the interests of the central government (to look as good as possible regardless of the facts), but that is a separate conversation.
At the current rate, all ~13 million Uighurs in mainland China will effectively cease to exist in a generation or three. They'll still exist in genetic terms, but their culture will have been erased except for small pockets of holdouts, who will be hunted down and assimilated/imprisoned. This isn't to minimize the death toll of the War on Terror, but rather to not allow seriously bad actors to escape the scrutiny they deserve.
They are being culturally blunted and they will likely eventually be bred out of being a distinct group.
https://apnews.com/article/ap-top-news-international-news-we... https://apnews.com/article/ap-top-news-international-news-pr... https://www.voanews.com/a/east-asia-pacific_voa-news-china_c... https://share.america.gov/china-coerces-uyghur-women-into-un...
The latter two links are indeed .gov propaganda outlets, but their reporting on this issue is accurate. It's very easy to find more sources.
Although not Westerners against Chinese (my kids are welcome to play with the Chinese kids next door and the Chinese next door are just as welcome as any other neighbor to a garden party).
But it should be the world against crimes against humanity.
And then we Westerners will also have to clean up our own systems; that is just as important, but a smaller task.