Why anarcho-capitalism is not sustainable

Anarcho-capitalism is the ideology that in a market-oriented community, no government should be established. However, that is unsustainable because in such an environment, private parties will establish a government of their own in the interest of maximizing their share of control and prosperity.

When that happens, the new government will be unlikely to preserve the liberties of the citizenry at all costs. Instead of setting up an anarcho-capitalist state, why not take preemptive measures against the emergence of a tyrannical government by setting up a very limited government whose sole purpose is to preserve liberties of the citizenry.

If we could have learned anything from Thomas Hobbes' Leviathan, it is that in the complete absence of a sovereign, liberty in the community will be extremely difficult to preserve. As Hobbes himself put it, in the state of nature "life is nasty, brutish, solitary and short".

Anarcho-capitalism is little more than a naive attempt to preserve personal liberties by eliminating an institution that often encroaches upon individual freedoms. This course of action is fundamentally erroneous because it overlooks the vital role that governments play in preserving law and order, which is a prerequisite for a free society.

That is one of the pivotal differences between Libertarianism and Anarcho-capitalism: the former postulates that the existence of a government is justified only by its ability to maximize liberty and the latter posits that there should be no government.