> The existence of existing harmful norms does not, ex ante, justify introducing additional harmful norms

The point isn't to justify anything.

It's to put things into perspective, and give people a more informed and holistic point of view, and then to ask them to reconsider their opinions in light of more information. There's nothing bad about that. In fact it's a good thing.

Especially in a world where people are so easily misled by others who cherrypick unexceptional statistics and then intentionally present them as exceptional in order to generate outrage, retweets, clicks, whatever.