I hear you entirely.
I tend to think there are countries which have reached the "no-win" stage of public relations. It sort of reminds me of when the UN sent inspectors to Iraq looking for the legendary WMDs-- even transparency wasn't good enough. The fix is in, and there's no reasonable sequence of definite actions they can perform that would get China on the West's good side. They could walk Joe Biden personally through the length of Xinjiang and someone would still say "they must have hidden the prisoners!"
Every positive story about China is always tempered with "but but Tibet/the Uighurs/social case-celebree of the week."
That slant, in particular, is particularly annoying. It's dehumanizing because we're treating a country of over one billion people as a single undifferentiated unit.
Did any of the tens of thousands of people who worked to deliver this event get up in the morning and think "Gosh, if I just paint these bleachers just right, they'll let people I don't know, 5000km away, get away with a genocide! Can't wait!" I doubt it. On the ground level, this is the work of ordinary people with ordinary motivations-- and the concept of "If we're going to be on a global stage for two weeks, let's do the best possible presentation we can." is not some malicious whitewashing conspiracy. They don't deserve the slander.
I have to wonder if we're in a situation where we're looking for an enemy. The Cold War was great for business-- it justified eternal defense spending and trade restrictions against a major economy. What a coup if they could pull it off against China!