It is not the business of government to correct all social ills, especially those caused by the decisions of free people, wise or not. Whites, and members of other races, prefer to associate with members of their own race, by and large. This is even true of white liberals: I dare say that in 2002 Beverly Hills, Chicago's Gold Coast, and Philadelphia's Main Line are as lily white as the congregation of the First Methodist Episcopal Church, South of Jackson, Mississippi, was in 1932. Laws by themselves do not change human nature; they only affect behavior, at least when the cops are in sight.
Would that neo-conservatives and liberals recognize these facts!
So I take it that until the Constitution was amended after the Civil War had ended, the Federal Gov't had no business bothering itself with a 'social ill' like slavery.
Nice sleight of hand, but the 1948 Dixiecrats were not resisting the Civil Rights Act of 1964. The Dixiecrats were resisting, in effect, the XIVth and XVth Amendmentsheck, they were practically resisting the XIIIth Amendment. But if the federal government has no legitimate authority to prevent states' violations of Constitutional rights reserved for the people or prohibited to the states, the entire document becomes meaningless. If the federal government cannot enforce the XIVth and XVth Amendments, then it also cannot enforce Article IV, Section 4, and there's nothing to prevent a state from reverting to monarchy.
I absolutely concur that the civil "rights" movement of the 60s trampled the Constitution by equating private, voluntary action with coercive government action. However, the Democrats of the 40s had no more respect for freedom of association than the Democrats of today do. Strom Thurmond repudiated their beliefs long ago, and I'm stunned that so many Republicans here find it hard to do the same. Just because the Dixiecrats used to be the enemy of our enemy, that does not make them our friend.