I call that speculation, not history. Just my opinion.
Lincoln elevated the issue of slavery to the place where it needed to be, namely to the moral plane.
Nonsense, he advocated sending the slaves away from America. He never made it the issue until it suited his needs.
Moreover, to keep the "war coalition" together was a tremendous feat---he was far more of a "minority president" than Bush was. Talk about red and blue states---Lincoln didn't get a vote below the Mason-Dixon line.
In other words, all the people who wanted to leave the Union, and they had the right IMO, didn't vote for him. Not surprising.
He crapped all over the constitution to get what he wanted. He wanted the Union preserved, it was the only thing he really cared about, by his own admission.
I disagree on Lincoln. Washington was the rare guy who did what he was supposed to do. It made him a hero, I guess. I don't have any problem with him and most others don't either, that's why he is always rated high.
Have your own opinion. But you're virtually alone. Lincoln was phenomenally great, and Reagan, as good as he was, will never top him. Washington remains #1, but you and the other neo-Confederates can have your cockeyed view of the world.