i guess not all democrat supporters are historians. we had biases taught at a young age with social studies and stuff. and it's easier to compare presidents to past ones. kinda why conservatives default cheer trump cause he's 'better' than biden obama etc.
like trump basically started a war, and by the time alls said and done. we're way too busy doing damage control, reparations, complex PR and stuff. it's not forgotten but we work on the present.