Well, communism enforced by the state -- where even if you eat the bread off of your own farm you are a "reactionary" (which actually happened in Ukraine under Stalin) -- yes, that is plunder. When "everyone" owns everything in common, then no one really owns anything. It's just another form of tyranny where the Party officials enrich their own pockets and the pockets of their pals--they just shut down all competition to the State.