Sorry for my last snarky remark. I just get worked up when anyone rewrites history. The Union did not go to war against the Southern states to free the slaves. If they were so adverse to slavery they would have outright banned it before the war. The Emancipation Proclamation didn’t even free all the slaves. It only freed the slaves in the Confederate States. Why not all the slaves if we went to war to free the slaves and end slavery?
Lincoln, the Illinois Butcher™, freed the slaves when he ran out of Irishmen to send to the slaughter. Out of necessity, he emancipated a fresh new batch of meat, a little darker but more temperate.