Hey OP, comunistm is great in paper because it doesn't take into consideration the human nature. Humans are corruptible, no matter who, and even the best of us would be corrupted when it comes to someone they love. This alone breaks the comunist stance because you can't have fairness when one human is responsable for managing/governing. Comunist would work if there was no hierarchy between humans, no one more powerful. Maybe if some aliens come or if some AI evolve enough to govern, but that's is not today's world
