Another whole angle of this I was thinking about the other day - you actually CANNOT just genocide a group of people without them responding in some way. People can tell when the atmosphere of the state they're living in is turning towards genocide against them (and a culture preparing for a genocide to the point of ordinary citizens accepting it generates a HUGE amount of propaganda, which there is obviously no evidence of in China). Before WW2 there were millions of Jewish refugees, and during it there were Jewish militias and partizans fighting back. Colonized countries rose up again and again to throw out the colonists who were exploiting and killing them. And now Israel is showing exactly what happens in the modern day if you try to annihilate an entire population: absolutely intractable guerilla warfare. Israel would love to just send in the army and gun down all 2 million people in Gaza, but they CAN'T because their army would be torn to shreds.

So to suggest the people of Xinjiang - which shares hundreds of miles of desert-mountain borders with Afghanistan and Pakistan - would just meekly accept a million people (literally 1/20th of the population!) disappearing without fighting back using the enormous amount of weaponry and guerilla warfare expertise within a trivial distance of them, or even just trying to escape with their lives, is outright infantilizing. WW2 shows they would fight back, the history of decolonial movements shows they would fight back, Gaza shows they would fight back, and the total lack of such a violent conflict in Xinjiang shows that whatever is happening there is not a genocide.