Capitalism may not need apologists and propagandists, but it does need a vigorous scientific and rational defense as evidenced by the fact that so many people still distrust free markets.Capitalism is not about free markets, any more than Communism is about the dictatorship of the proletariat. Free markets are an anarchist notion. Capitalism is about vesting the power to restrict and control markets to the owners of capital.
You cannot establish abstract property, property established by social construction (I'll write more on this topic later), in a truly free market; a free market respects only physical property, property established by physical possession.
That Capitalism has anything to do with free markets is not simply wrong, it is a fantasy and lie as egregious as anything Christianity has produced.
(h/t to a dime a dozen blog, who seems to have fallen for the lie hook, line and sinker.)