[axus]

Hasn't the number of would-be holocaust deniers been increasing in Germany?

China is an example of platform-denying taken to the extreme,

[goldenbikeshed]

No it hasn't. It would perhaps have if the strategy of history falsification that the far right kept trying since about the 60ies would have worked. These laws were one factor in making sure no such history falsification took place on a broad scale.