The term came from the French. La Guerre de Sécession. It seems accurate to me since that is exactly what the war was fought over, at least from the standpoint of the Commonwealth of Virginia.
Many of the Sons of the Soil I know do not consider the War to be over yet.
If you study our history and our current politics long enough, you start getting the notion that it never really ended. Much of the disaster we are currently facing regarding the relationships between the Federal Government and the states is a consequence of that war.
I've come to realize that the "establishment" now, is really just the descendents of the "establishment" back then. Since before the civil war, the nation has been ruled by a power corridor stretching between Washington DC and Boston.
It is they who's power and influence establishes Washington DC policy today, and there is a very good reason why they own the media-weapon.