Say what! I just checked the civil war battles. Most of the battles were fought in the South defending against the Northern invasion.
A couple in of Confederate invasions of the North, Ohio, Pennsylvania and in several of the slave states the Union seized to prevent them from joining the South.
Several Indian fights in the west.
https://en.wikipedia.org/wiki/List_of_American_Civil_War_battles
So it sounds like Lincoln did more damage than Davis did.
There would have been no Civil War had the southern states not seceded. And Jefferson Davis gave the order to fire on Fort Sumpter, which kicked the whole thing off. Where geographically in the US the most damage was done during the Civil War is irrelevant.
Peters' point was that no president since Jefferson Davis has done more damage to the US than Obama. And Peters was not talking in terms of lives lost or property damage. Although, if something is not done soon to stop this madness, those measures might be surpassed also.