Most of the Yankees who fought were not the jackals. Besides they did not do it so “handily” as you put it unless you consider that twice as many Yankees died during the war as Confederates.
You now do sound like a jackal or maybe jackass.
approximately 365,000 federals died and 260,000 confederates, for an appoximately 1 1/2 to 1 ratio
I am happy to be called a jackal or jackass. Which of the two are you for, slavery or secession?