I mean if that's your definition, then China is not doing cultural genocide. They aren't separating children from parents and re-educating the children to assimilate. They're taking the parents, re-educating them and telling them to tell their children to be like them moving forward. That's what the whole sleeping in the beds thing is about. They're going family to family to make sure they don't break up families and make the whole family accept a new way of living.

Also, the destruction of racism was targeting white people. Heck that's what they're complaining about. They even had traditions and parties based on racism, least we forget who the KKK is So unless black people were also the target of anti-racism, then it was very much just the white people. Also, it was very much a movement from the government. It's why it lead to a civil war where the south said they could not abide by the northern government.

*Edit: In fact there's video after video of families in XInjiang asking the people who fled to come home. NOW, that said, it's entirely possible and likely they were forced to do this. But what I'm pointing out is, they're absolutely making sure that the families stay together and change as a unit, not forcing separation like what Canada did.