Which is my point, US Government can't do it. These names are there because of the 14th Amendment.
Btw, I don't think most of them fought to preserve slavery. It's well known Robert E. Lee fought to protect Virginia. Same with Stonewall Jackson. Prior to the end of the Civil War, people (citizens) owed allegiances to their home States. I also think if compensation was offered, South would have been more willing to listen,
like they did in the United Kingdom. As freeing a slave which is "property" destroys net worth. Now I want to say I do not justify slavery.
But we still have loyalty to our "state" on both sides of the Mason Dixon line. I grew up on the Mason Dixon line, near Gettysburg and I was a child of an immigrant but to this very day I am loyal to PA, my town, Penn State, and my local sports teams. Just as the my friends in Ohio are loyal as hell to Ohio, their towns, Ohio State and their sports teams. Just as a person from South Carolina, 'Bama, Texas or so on. It's just who we are as animals. The pack mentality. We stick together.