Earlier quoted context omitted.
True, I started weightlifting for three months and my BMI went into overweight territory. I had an athletic build both before and after. Probably good for a lot of people but weightlifting really puts it into question. It's not like weightlifting is something only few men can do; most men can weightlift. Then they end up having healthy body fat levels, but end up with BMI in the overweight category. If something as s…
The question is not whether most men can weightlift, but whether most men do weightlift. They don't.
You are arguing that if it empirically works for most people, then it’s a good measure. I’m saying that a good measure should in principle work for most people.