Illiberal Libertarians: Why Libertarianism Is Not a Liberal View/jim crow
From Critiques Of Libertarianism
Jim Crow laws were not the primary cause of segregation in the South. In many places few laws, if any, explicitly restricted blacks from entry into desirable social positions, from purchasing property in white neighborhoods, from entering private schools and colleges, or from using hospitals, restaurants, hotels, and other private businesses frequented by whites. Still, these events rarely occurred due to tacit (often explicit) agreement among whites. Because of privately imposed restrictive covenants, discriminatory business practices, and blacks' abject economic status, there was little need for laws imposing segregation and discrimination. It could be left up to the invisible hand.
Samuel Freeman, "Illiberal Libertarians: Why Libertarianism Is Not a Liberal View" pg. 135