Isn't race a "gene grouping"?
Not really, considering the fact that race doesn't really exist. Humans have been interbreeding amongst what some describe as races for so long it is unreasonable to describe any particular race.
You could say that as an Englishman I am Anglo-Saxon, but all Brits are a mix of ancient Celts, Roman and the many people they brought here with their empire, the Vikings, the Angles, Saxons and Jutes, The French, Jews, etc etc etc through the ages. There is no such thing as an Englishman beyond those born and resident in England. There is no Anglo-Saxon race, much as the white power people wish there were...