The "markets" most people learn about are artificial Econ 101 constructions. They're pedagogical tools for explaining elasticity and competition under the assumption that all widgets are equally and infinitely fungible. An assumption which ignores marginal value, individual preferences, innovation and other things that make real markets.
> What capitalist wants that for himself? He wants decreased competitions and sky high prices for himself, and increased competition and lower prices for his competitors and suppliers.
The capitalist wants to be left to trade as he sees fit without state intervention.