Civil war today would be far more than a North South issue. If it were it would be a mad scramble with the dispersal of folks since the civil war. And would again result in mixed support based on more than geography of a family past or present. Undoing the cultural homogenization would be about as futile as stuffing toothpaste back in a tube. Unless you want to count only those who have never lived anywhere but below the Mason Dixon line , and have no relatives above it... Are there enough bodies to fight? Can they? Will they?
Some folks won't. For any amount of pay .
The era of a glorious dream for the South and the mission to keep it ,or reclaim it , is history.
Allegiances ,alliances ,potential further South of North America ambitions , all gone.
Lest you have contrary evidence.
Were K.G.C. still viable through active participation and traditional recruitment and funds recovered it would more likely result in a last hurrah cook out. Or three , before another civil war. Who would they be fighting , and for what?
Would they be willing to feed all the mouths that exist today in their realm during a war? Folks are much less self sufficient , and starving fellow supporting citizens are hard on moral. Even if they don't fight.
Were it (K.G.C.) still active , dues and donations of more than specie would still be being collected as all along. Choose a time and go forward enough and recoveries would not be needed. Would they after the past 150 years?