There’s a YouTube channel covering WWII week by week, and there’s a sister series called War Against Humanity, which covers the atrocities committed on all sides—not just the a death camps and the murders in the ghettos, but firebombing campaigns, the Japanese internment camps, the Bata’an death march, the famine in India at the hands of the Raj, and so on. Every episode ends with host Spartacus Olsson repeating the phase that we should be using, “Never forget”. Because a huge contingent of us seems to be forgetting.

Seems those other people haven't really learned anything from it at all, considering they'd still be down for it happening to anyone else.