The whole point of a communist system is a centrally planned, and controlled, economy.

This has not been universally true among socialist states.

This gives the state immense control

All states have immense control by virtue of having a monopoly on violence.

The capitalist class controls the state in capitalist countries, including ostensibly democratic” ones. They use the state to to rule the working class and to protect their private property.

self preservation at any cost.

This is practically every state that has ever existed.

“rules for rulers” by cgp grey,

Maybe step away from the Polandballs and go read/listen to some books.