[wpietri]

I would be interested to see your data for that. But even so, so what? | There are plenty of human characteristics that have wider variation. Nobody's diagnosing people with European Skin Syndrome despite the way white people can't handle reasonable amounts of sun and are highly prone to cancer.

Also, it's an analogy, and not meant to be taken literally. It's just meant to give people a feel for what unnecessary medicalization might be like.