To the hunter gathers in an essentially unpopulated world, the abundant food that often surrounded had a cost, often a steep cost. The markets and barter system of Neolithic people can be understood in capitalist terms though they weren’t strictly capitalism. Communism has an extremely high cost of goods and often existed thanks to underground or black markets.
I quite agree. But markets evolved to allocate scarce resources. How and why will they survive in an economy of abundance?