You have that backwards. Whites were forced to not associate with other races by governmental force. That was unconstitutional on its face. This was retarded when the last guy made the argument and it's still retarded now. If you want to self segregate that's fine but do so without using the force of the government. Before you start yodeling about forced interactions and lack of freedom of association because of the civil rights act of 1964 I agree that it's bad and unconstitutional to enforce it against private entities. It's the same logic behind government enforced segregation.