Race at a continental level is almost useless for biological purposes. Almost all the best runners in the world come from one Kenyan tribe. And those Kenayans have more in common genetically with an Irish person than they do with a Pygmy from their same continent.

If you want to look at very small populations then you can find useful biological similarities. And small populations are nothing like what anyone calls race.

Race is real. It's just socially constructed instead of being based in biology.