No science, because even ignoring the liberals who love women soldiers and fighter pilots, oil riggers and builders, or how crime data correlates much better with economics than race (and the same ethnicities vary in crime rates from country to country) the genetic data isn’t on your side either.

There’s more gene variation of race in Africa than the rest of the world. And Asia is hardly a slouch when it comes to ethnicies… But I wouldn’t expect a racist to recognise that.