That's not what the confederates said. Lol. Everyone had guns in 1860.
What that they said was that southern men were superior in riding and shooting, and they said that 1 southerner was worth 10 Yankees. They also said the "Yankee race" was inferior to them.
The union forces had massive advantage in population, industry, economy, arms & ammunition, and naval power behind them. Some believe the outcome was inevitable. For sure, the longer the war went, the less likely there was of a southern victory.
But the warfare of the Confederacy vs the Union was radically different than how a hypothetical second American civil war would be fought.
I think what
@bigkat is saying is that in a hypothetical Left-Right civil war, he would see an advantage for all those good old country and small town boys who have shot and owned everything from BB guns to AR-15s and have been shooting the eyes out of squirrels since they were 7 years old over limp-wristed metrosexuals who have never touched a gun.
He does have a point.