> the concept of ‘race’ is scientifically and socially unsupportable. Just like the concept of "culture". See https://slatestarcodex.com/2014/08/12/does-race-exist-does-c... , here's the kicker: "There were two arguments against race being a real concept: it didn’t cluster nicely, and within-group variation was greater than between group variation. And both of these are equally true of culture. Any mathematical argum…
That said there is of another difference between the two concepts - race (as described by racists) is something that is considered to not be created by humans but something essential and unchangeable by the person; whereas culture is always something considered to be created by humans.
The arguments against race, as well as not clustering nicely and the within group-variation thing, all hinge on race being a social construct - like culture.
Perhaps the reason then that race and culture would be so similar is that they are in fact both very much alike in that they are concepts created by humans.