Anarcho-capitalism, in my opinion, is a doctrinal system which, if ever implemented, would lead to forms of tyranny and oppression that have few counterparts in human history. ... I should add, however, that I find myself in substantial agreement with people who consider themselves anarcho-capitalists on a whole range of issues; and for some years, was able to write only in their journals. And I also admire their commitment to rationality which is rare though I do not think they see the consequences of the doctrines they espouse, or their profound moral failings.
Subterranean anarchist currents once agains surfaced in the 1960s...We will sketch its initial impulse in the 1950s, the creation of a broad critical movement in the 1960's, its differentiation into right and left tendencies, and its final shattering into various anarchist splinters. These ranged from Anarcho-Capitalists who desired the organization of society solely on the basis of a "free market" to Anarcho-Communists who sought an individualized society of decentralized communes.
Today individualist anarchists in the US call themselves anarcho-capitalists or libertarians...
Although part of the classical liberal tradition, contemporary anarcho-capitalists are descendants of nineteenth-century individualist anarchists such as Josiah Warren, Lysander Spooner, and Benjamin Tucker."
The Anarcho-Capitalists, who had more of a historical sense, did occasionally cite past anarchists like Spooner and Tucker as "the forefathers of modern libertarianism," but only a few individuals like Murray Rothbard, in Power and Market , and some article writers were influenced by these men. Most had not evolved consciously from this tradition; they had been a rather automatic product of the American environment.