Asking since most of the people in this thread are taking it as a given: what is the strongest evidence pointing to the fact that China is carrying out a genoci

Asking since most of the people in this thread are taking it as a given: what is the strongest evidence pointing to the fact that China is carrying out a genocide? For example, I've been fairly bothered by the consistent citing of unreliable sources for the Tiananmen square death counts (ie. that British cable that cited 10k+). Lots of people seem to be calling any deviation from the "accepted" line to be "brainwashed", Winnie the Pooh jokes, etc.