As long as you acknowledge that the War of Northern Aggression and the atrocities committed by the North was a monumental stain on the honor of the North and remains a stain to this very day, we're all good!
Mr. Zin is a bit of a buff. Has always said Sherman could arguably have been tried for war crimes. Again, I'm not a buff and know precious little, but his March to the Sea was...ummmm..yikes.