Depending on how the security is implemented, it can be done robustly enough that 'China' will not be able to subvert it. There is no need for some sort of 'mas

Depending on how the security is implemented, it can be done robustly enough that 'China' will not be able to subvert it. There is no need for some sort of 'master' private key that would allow re-sharing and duplication like you state.