And yet so very few owned slaves at all. Ironic?..or something else? 27% of the West Point graduates that fought in the war, fought for the Confederacy. Why so?
We have simply to look at the Revolutionary War for the answer. A handful of people were fighting for what is now historically accepted as "the cause", and a couple handfuls more were merely rabble who got roused. Pretty much like today where a large segment of the population has no idea who's even running in an election, but they vote anyway and choose the person they're told to choose, and go to figurative war with their friends and family over any differences of opinion.
Fed: Give runaway slaves back to their masters because it's their rightful property.
A tiny handful of northerers: No.
Slave owners: MFers, give us back our property!
Northern handful: No. In fact we're going help them run away.
Fed: Ahmmmm.....dahhhhh....ermigerd....
Population in general: Whuh?
Southerners: Our newspaper says we need to kick your ass!
Northerers: Well OUR newspaper says we need to kick YOUR ass!
(commence war that most people don't even know why they're fighting)