This guy was a gleefully inhuman monster who hurt people for fun decades before he was even President.
Just as with Ronald Reagan, some people just do so much harm to others unrepentantly for fun and profit, that I can very much revel in their pain/decline/confusion and sleep like a baby.
I don’t subscribe to the pure model of “treat others as you would have them treat you.” Humans abuse that and it makes you a mark.
My version is “In a vacuum, be kind, but once someone shows you who they are, treat others how they treat others.”