So by your logic we should remember people like George Washington as essentially evil. How is that fair? One’s achievements and flaws must be considered inside their historical context, not our modern viewpoint.
Even among just the founders, slavery wasn't an institution universally accepted even in Washington's day.
Yes.
Then man kept other humans as slaves. That is evil. There is no question about this. People in his own time thought this was evil. He did it anyway. He was evil.