I'm joking, I'd snatch up a signed copy of Hitler's book in a heartbeat for my library. I'd put it next to Decision at Normandy and The Rise and Fall of the Third Reich. It is a piece of history. The self-righteous McCarthyites think that we keep it there for masturbatory purposes. But that's because they don't read anything bigger than a Meme.
In Canada, yes if some Karen is offended by it. An elected school board trustee got nailed by a kangaroo court, AKA Human Rights Tribunal to the tune of $750 000 efor declaring pubicly that there are only two genders.