Is race a social construct, and if so to what extent?

[Ewigkeit]

Obviously, populations differ biologically. And these differences don't just impact physical appearance, but temperament and ability.

But it does not follow from this that human populations can be divided into 3 or 4 or 5 races. And the lines between races seem arbitrary and readily changeable. For example, why are honey-hued Sicilians (with average IQ around 90) classified as the same race as snowy-skinned Scandinavians? And what about the "Caucasian race"? Not to mention the fuzziness of the lines between races. Southern Egyptians pool closer with Sudanese than Europeans, yet the former are still "Caucasoid."

[Kamal900]

Well, back in the day, it was more like that than today where we classify race based on anthropology and genetics. Like, Europeans in the past used to refer the native Americans as "red Indians" even though they're neither red or Indians, and the current scientific consensus on their origins is that they're racially paleo-Mongoloids who's origins are from modern day Siberia. People in the past also used to refer "race" synonymous with ethnicity. Science really doesn't correlate with politics.