There's more than one way to run the system. The Six nations managed a very communist society for 15,000 years before white man killed off 90% of them with diseases. They had a council of grandmothers, and their constitution (much of which the founding fathers blatantly plagiarized) started with the rule that no law could be made that didn't directly benefit all of the next 7 generations of children. They weren't Marxist or Trotskyist, but they were definitely communist/socialist. They barely had commerce, and lived with an excess of wealth even by today's standards, their medical care was somewhat lacking, but they still had decent medicine all things considered.