see the whole idea of social chaotic is more naive than anything and somewhat arogant, there's a whole line of economic systems that develope into eachother, none are permanently sustaining, look at capitalism, it can only stay around in the US for so much longer, the only was to have a long term sucessful communist society would be to have no interaction with a capitalist system, in an international market communist nations could only trade with other communist nations, also you need to limit social interactions, this is why places like china have been over the top about things like immigration, the free flow of information, and an interactive market, they weren't a pure communism but they were trying to maintain isolation for the sake of preserving thier fragile societal structure