A person rather hostile towards China did make the argument that "The cultural revolution was the norm for China" and that regular millinarian peasant uprisings like the Taiping or the Red turbans did obliterate tens of millions and destroy much of Chinas earlier art and architecture to create a new society. This seems strange to me, but I have no idea if it might not be true to an extent. How much did such movements desire to destroy all signs of past culture? How destructive were they? (we have decent numbers for the Taiping, but I dont know about White Lotus or Red turbans) I also dont think they exactly aimed at annihilation of people beyond quiet limited groups.