Dialectic materialism is the Marxian interpretation of reality that views matter as the sole subject of change and all change as the product of a constant conflict between opposites arising from the inherent contradiction inherent in all events, ideals and movement.
Dualism whether Marxian or not is not a profound basis for a worldview and in fact is based on an illusion since the ultimate reality is energy, not matter in a context of Oneness. Any attempt to organize a human community founded on the illusion of form will ultimately result in human self-destruction.
Fundamental unconsciousness as to the nature of reality must by definition lead to dysfunctional human institutions whether they are communist, socialist or so-called democratic institutions.
Without the context of Simple Reality, all such human endeavors are unsustainable.