[gizmo]

He acknowledges externalities exist, i.e. you can't have a functioning market when the incentives are wrong, like with pollution. But in those cases where you do have market forces he argues that the market should set the prices with minimal government intervention. That's why he's fervently against rent controlled housing or minimum wage laws. Despite the overwhelming evidence that there are meaningful externalities that necessitate regulation for housing, minimum wages, worker rights, education, and so on.

With regard to health insurance, he argues "Whenever I hear about how many Americans do not have health insurance, my usual response is to wish that I were one of them…I would rather pay doctors and pharmacies directly, without sending the money through bureaucratic channels in the government and the insurance companies".

He (intentionally) misunderstands that the entire reason to have a health insurance mandate is to force healthy people to pay into the system. If only sickly people had health insurance the fees would be impossibly high. You can't have a system where people only start paying for health insurance after they get sick. And if you have a system without insurance people won't be able to afford expensive treatments so they'll just die. Sowell's policy suggestions aren't serious, and he's not taken seriously because of it.