an ongoing authoritarian state is required to protect the communist project
I get what you're saying, but I think this is ceding too much ground by more or less accepting their definition of "authoritarian" (when the government does something I don't like).
It's much cleaner to argue that all states have police, all states restrict speech, all states try to disrupt those who wish to overthrow them, etc., and then ask how China is different along those lines than the U.S. or any other "good" state.
