Not a hate thread. If that's what you want please go elsewhere, there is no place for you here.
(For all intents and purposes of this exercise I'm Answer #5 mmkay.)
You might be surprised at how ambivalent the American South is in regards to who should have won. It's not all about slavery (although it started it); if you were white male and from the South, would you buck your neighbors and fight for the North, potentially killing them?
The Battle of Antietam /ænˈtiːtəm/, also known as the Battle of Sharpsburg, particularly in the South, fought on September 17, 1862, near Sharpsburg, Maryland, and Antietam Creek as part of the Maryland Campaign, was the first major battle in the American Civil War to take place on Union soil. It is the bloodiest single-day battle in American history, with a combined tally of dead, wounded, and missing at 22,717.