Failure of POWs exchange have nothing to do with General Winder's design to terminate Union prisoners under his care. If he had survive the war, he would have join his henchman Henry Wirz at the gallows. Is all your history this faulty and inaccurate?? Are you even a white guy? What white guy would defend someone like Winder or Wirz whose sole purpose was to killing off white Union POWs.

By the way, Genghis Khan warred against  mostly Chinese and Muslims. His successors were the ones who entered Russia and invaded Poland. I doubt there were "millions of white race", unless you counted the Muslims and the Chinese as "white".  Neo-Nazi kook like you should read more and realized there isn't a single person on earth, who got rights to throw stone at anyone.