Karl Marx coined the term "capitalism" by analogy with feudalism. To describe societies where monopoly power, and resulting wealth concentration, allows monopolists to become aristocrats. That's what radical lefties like me are pointing to when we use the word.
But common usage of the word has drifted so far from its origins that it usually refers to any economy with money and markets. Resulting in a lot of conversations where people are talking right past each other.
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