The goals of communism are to resolve class contradictions, which "naturally" happened in the case of feudalism ending. Communist states attempt to accelerate a

The goals of communism are to resolve class contradictions, which "naturally" happened in the case of feudalism ending. Communist states attempt to accelerate and resolve them through stages. This is where they can seem "unnatural". On the flip side, there may not be anything to inherently prevent capitalism from doing similar things too. The USSR tried to have a much more planned and state managed version of capitalism to progress through the stages of socialism. The central planners decided where profits went instead of private property holders. If these property holders were to have control of a political system, then there is the potential they could enforce similar things.