The rich become the government. Wealthy property owners wrote our very constitution. Money is power and corporations and lobbyists control the US right now. Decentralization with a focus on removing hierarchical structures will make it difficult for someone to amass that kind of power.
Well no that isn't what really happened. People achieved some independent wealth, which gave them the capital they needed to become an independent nation and write a constitution. It is similar to my electricity example. If communism were possible, we could replicate a separate system without requiring a capital investment. The fact that all we do is talk about this proves that it is not possible because there are enough people that would want to do something like this to accomplish it in theory. However, they can't because it requires capital that they don't have, which proves that a communist system will ultimately fail because it cannot independently be created.
However, that doesn't address the difficulty of Mr. Potato head here? I tried to reply to him but you can't see the quote he wrote to me about how people become indebted because they are bad at handling money. That is what I was responding to, and I am supporting capitalism, and he is supporting capitalism. Although, he is disagreeing with both of us, which kind of makes me think communism will not work. It also kind of makes me think at some point we would need a leader to make a decision between our three competing opinions. This is why communism will never work. It will always lead to some kind of state or monarchy and in some archaic forms of government that don't have established divisions of power, things could be much worse than they are now.