The root error comes from the assumption people will cooperate with the principle willingly. Once you assume most people will exploit any system for personal gain when they can it becomes evident communism is not a workable system without a totalitarian government. Even then people will generally do the bare minimum so you get poverty.
Capitalism exploits the inherent selfishness of individuals for the greater good of society.
I cant reply there and im not really sure why my statement was posted there, especially without citi g me as the source. So notnsure what to do with this.
Maybe, but if communism converges to these two cases with the same result, it seems to be from the same error in thinking.