If the South had used the tactics of total war and destroyed the means for the North to pursue war manufacturing and transportation, The South would have won.
Fine, but how was the Confederacy supposed to do that? How should the confederacy have destroyed meat-packing plants in Chicago that were supplying food to the troops? How could the Confederates destroy munitions factories in the NYC area that were producing ammunition? How could they have destroyed the steel factories in Pittsburgh? How could they have destroyed the textile mills in Boston that supplied uniforms? There was no such thing as heavy bombers in the Civil War, you know.