Central planning of all production means that the central planners controls everything in society.
In fact, the only significant difference between capitalism and socialism is a democratically controlled workplace, which is inherently less authoritarian than capitalistic totalitarian workplace governance.
It's also ironic how people constantly conflate "democracy" and "capitalism" on one hand, and "totalitarianism" and "communism" on the other, while completely accepting totalitarianism during a significant portion of their life -- their workplace.