Terminal stage treatbrain: “Anyone that ever, ever makes me feel bad about anything done by my predecessors is actually a bad person. I am the Main Character. Me.” 
Are these bazinga nazis doing things that much better in the present, or are they seeking to “coup whoever they want, deal with it” as usual? 
“I want to pretend history didn’t happen or have lasting consequences for others because that might hurt my feelings and challenging the status quo is scary”
If you’re worried about kids learning about these things then maybe try improving society somewhat instead of coasting along in the mundane safety that your race, sexuality and gender afford you.