I hear you on the level of history should emphasize a "look at what we allowed" rhetoric to instill some semblance of public shame to curtail future behaviour. I just think it's at odds with the reality in which history is read; namely the "look at what these specific villains did, and were they justified" as a form of absolving ourselves and humanizing said villains.

If we're going to scapegoat, might as well not draw attention to it at all IMO