IANAH, but it's been something I've thought about in the context of our current political climate. We've been taught in school that the casus belli was because of either slavery or "states' rights". Either way, doesn't that mean that the white soldiers of the South were fighting to protect a system that keeps wealth and money in the hands of a few wealthy plantation owners and keeps them down by owning slaves and keeping labor wages down? And this could also be an example of the people with power and money buying off their politicians, having them fight on their behalf for "states' rights." At the end of the day, these poor people fought for a system that kept them (and the slaves) down, and that war destroyed their farms once it was over (assuming they survived and weren't maimed), all in the name of Southern tradition.
I guess there will always be those who don't think for themselves.