Sometimes people bitch about media, both fiction and nonfiction, that they think "humanizes" bad people, especially bigots fascists Nazis et cetera. And I'm just like. Hey. Hey. The problem is. They ARE human. HUMANS did that. Your next door neighbor could do that. Your grandma could do that. You could do that.
"No I'm a good person" why? Because you've gotten lucky and not seen propaganda yet that perfectly hit your buttons? Because you had people to correct you when you fucked up? Idk man I don't think we're all so different from the bad people. We're all just people.
Reminding ourselves of our shared humanity with terrible people does NOT serve to justify their actions. It serves to remind us that the seeds of what happened to them could get into us as well, or might already have. It reminds us to be vigilant and interrogate the hatred inside us.
If you convince yourself that you're just an Inherently Good Person who would never believe hateful things well. Now any little hateful thing that makes its way inside you undetected is never going to be interrogated. It will be left to grow undisturbed.
If you remember that those things can get into anyone, you know to look out for them, and weed them out when they appear, and take the criticism when others point them out in you. So remember, that could have been you. If you forget, maybe it will be.