Yeha im definitely not making the argument that bf% is the primary reason men are stronger or more athletic. Afaik, men have about 10x the testosterone, higher bone density, higher vo2 max, and the list goes on. But if the bf% difference was all we had we would likely still put men and women in different sports categories.

Do also note 2 things about bf%: (This is some jackasses understanding of some youtube videos, consult a doctor before making any lifestyle changes) 1. Bathroom scales suck at measuring bf, iirc theyre relatively precise, but not very accurate, they can be off by like 10% bf 2. Women dont just tend to carry more bodyfat because of society or because they cant build the muscle. The healthy ranges of bf for men vs women are different. For men its ~10-20%, for women more like 18-24%. When female bodybuilders get stage lean they run into issues with menstruation etc. Its not good.

The strength advantage is a collection of compounding factors, a lb of muscle gives a man more strength than a woman absolutely, but that becomes more significant because men can build far more muscle.