This ignores thousands of years of history pre statehood. Non communist systems have only exist for a tiny fraction of human history, whereas most of our history was spent in systems much closer to communism than anything else.

They just need societal systems in place that would allow for our much larger communities to work properly.

And your comment about working for the greater good is kind of stupid in this regard as well. Communism is not a lawless society where people can do whatever they want without consequence.