Many years ago I read this by Ayn Rand but I didn't totally understand what she meant:
"A recent variant of anarchistic theory, which is befuddling some of the younger advocates of freedom, is a weird absurdity called “competing governments.” Accepting the basic premise of the modern statists—who see no difference between the functions of government and the functions of industry, between force and production, and who advocate government ownership of business—the proponents of “competing governments” take the other side of the same coin and declare that since competition is so beneficial to business, it should also be applied to government. Instead of a single, monopolistic government, they declare, there should be a number of different governments in the same geographical area, competing for the allegiance of individual citizens, with every citizen free to “shop” and to patronize whatever government he chooses."
Now I think I understand what she means when she says that statists and anarchists "take the other side of the same coin". She means that both statists and anarchists treat all acts the same. They don't differentiate between acts of force and voluntary trade. Statists use government to protect rights but also to violate them. Anarchists use the market for both. Only minarchists differentiate between force and non-force. Minarchists are the only ones who implement natural law.