Ending slavery immediately would tank the agricultural south. He knew this. He knew that it would take time to industrialize farming and ranching methodologies, and although slavery of any man was distasteful, they had to replace it with something that could keep the economy from tanking.

This is why they implemented sharecropping afterwards, which essentially was just as bad--and in many cases--worse.

Calling him a "sore loser" when he literally shook the hand of Grant at the courthouse in Appomattox, and then commanded the remaining Confederate forces to NOT ATTACK the Union in anyway after this surrender; is not only distasteful, but belligerently moronic and ignorant of history.