Tell the critic to stop talking in metaphors, The market is not a beast and the government doesn’t tame it.
The theory of how people act in concert within a division of labor to accumulate capital and generate economic progress in markets has been around without refutation since Adam Smith. Explain it to the critic and then ask him how exactly the coercive power of the state, aside from defending person and property, can improve the economizing of of production decisions made by entrepreneurs in the market..
