Good counsel.
I can see the story developing like this: The South wins but Lincoln survives the war. Lincoln commences with his promise to ship all northern free blacks back to Africa. Kind southern whites set up a reverse underground railroad to repatriate northern blacks - before its too late - back with their extended families across the North's heavily defended, and walled, DMZ. Trouble ensues as defeated and embittered northerners turn on each other and impeach Lincoln for suspending habeas corpus. An eventual, but slow, reconciliation occurs as sports teams begin to visit across the DMZ - but not before northern bigots riot and attack integrated major league southern baseball team members with cries of “Remember the New York City Draft Riots!