I'm curious about where "they all failed" comes from. Presumably that means there are none currently in existence? I suspect that a lot of communes are set up f

I'm curious about where "they all failed" comes from. Presumably that means there are none currently in existence? I suspect that a lot of communes are set up for religious reasons, or because somebody fancies themselves as a petty dictator. This may be inevitable when a commune has to be set up on private property, and somebody will be the "owner". I thought the Plymouth Colony was successful? I don't know what system of governance it had.