Communism, in reality, is just another variation of Capitalism, in which Capital is centralized in the hands of the State.
I remember the quote from Arthur Jensen in the movie, “Network”, when he dressed down Howard Beale...
“What do you think the Russians talk about in their Councils of State? Karl Marx? They pull out their linear programming charts, statistical decision theories, and minimax solutions and compute the price-cost probabilities of their transactions and investments just like we do.”
One major difference... Individual Capitalism has plenty of competition. Government's tend to shoot competitors.