I think if you delved a little deeper into the history of the civil war, you’d find out some interesting things.
I wouldn’t even consider the southerns rebels, as a matter of fact, given the nature of their beliefs, I would say they are more in line with being Americans and belief in the constitution then the other way around with the north at the time. The north wanted to spread it’s influence, wanted things done their way, centralize government. Long list of other things, but bread and butter of it was, it was a war against tyranny from the north.
Jeff Davis, President CSA
The Midwest provided entirely too many troops to the Union cause and New York too few for your idea to be sound.
BTW, Indiana and Ohio were filled to the brim with Southern abolitionists driven North by their pro-slavery friends, relatives and neighbors down home.