Funny. 300,000 white men died to free the slaves, led by a commanding General who was forced by law to free his slaves, long after the opposing General surrendered (who incidentally personally opposed slavery)? You’ve been duped. General Grant was a slave owner well after he “freed” all the southern slaves. Lincoln’s Emancipation Proclamation deliberately freed ONLY southern slaves.
The civil war was not about slavery. It was about economic advantage. “Slavery” was an excuse used by some to get low information citizens to support a disastrous war.
Grant had only one slave whom he manumitted at a time that he could ill-afford it.