The Chinese Communist Party presents a thoroughly censored history in which all the things it did badly have disappeared.

There are similar tendencies in other countries. For instance, Japan tends to deny war crimes, including kidnapping women from subject peoples and forcing them to be prostitutes.

Some Americans tend to deny ugly parts of US history, including slavery, stealing the land from the indigenous peoples, overthrowing democracies in other countries, and, since 2000, a number of wars that go on and on because victory is impossible.

But it is not forbidden in the US to talk about these things.