Then you imagine communist society to be slave society with a state machinery to run the slaves. So that is at least two classes of people organized within a state.
We dont imagine that -- it's true. You have no freedom or liberty, if you dont have both SOCIAL AND ECONOMIC freedom. Centrally run and planned economies make economic slaves out of the populace. And the 2% thrive. Like in Russia with the Oligarchs and bankers. Or China with the military being YOUR forced business partner.