It's not that more fine-grained classification is useful, it's that race is not a useful biological classification. To build upon your own example, neither skin

It's not that more fine-grained classification is useful, it's that race is not a useful biological classification. To build upon your own example, neither skin color nor running ability nor what continent you came from can be used to tell us about other traits. But I'll let Princeton sociologist Dalton Conely explain to you what you're getting wrong about the science. https://nautil.us/what-both-the-left-and-right-get-wrong-about-race-236629/ https://nautil.us/what-both-the-left-and-right-get-wrong-abo...