Well to be fair the Khmer Rouge were reviled by (some of) their "fellow" Communists. Closer to fascism than communism imo but that's really beside the point.
Given that historically Communist regimes typically accomplished rapid state-directed industrialization, shifting from agrarian peasant societies to modern industrial economies, a more historically-appropriate communist theme would actually be reducing food output in exchange for lots of hammers. In-game State Property actually doesn't do this (certain improvements give more food) but I think SP+slavery give a reasonable approximation of the Maoist, Stalinist, etc. regimes. The fact that the Kremlin makes slavery more effective is a nice touch
Agreed on all counts. Your suggestion to increase hammers at the expense of food has merit .