You're right. But at no time should the discussion of any atrocity take on a mocking tone. Mocking can lead to desensitization and trivialization.
I think the devil would love if we didn't know he existed. If he can't get that, being trivialized would probably be his second choice.
Not sure where you’re coming from.
The Holocaust is of course no laughing matter. But the perpetrators deserve to be berated with contempt and ridicule.
Same with abortion. (Similarity)