And that War of Northern Aggression was not started over slavery...albeit, unpopular by most of the states. The war was over money, tariffs. AND most significantly "...3 states, Virginia, New York, and Rhode Island declared in their ordinances of ratification that, being sovereign states, they reserved the right to secede from the Union. Virginia's convention, for example, affirmed that " the powers granted under the Constitution being derived from the People of the United States my be resumed by them whensoever the same shall be perverted to their injury or oppression." They also asserted this right for the other states, which was unnecessary since it was self-evident to everyone at the time that no state could be forced to join or remain a part of the union...."
The 'south' had a constitutional right to secede.
The monstrous bureaucracies that grew out of D.C. employ so many unionized federal employees that live in Virginia I doubt secession would ever be a serious issue there.