States rights argument for the civil war is totaly bs. The propaganda machine of the Southern leadership was blatant and hard to argue for. They used fear that black men would rape white women if they were freed as the number one tool to get poor non slave owners to join the ranks for the Conf army. If only slave owners were in the Conf Army the war would have never happened.
That flag represents treason and barbarism. The constitution states that all men are created equal. Not all white men.