To quote the first paragraph of the Wikipedia article on Race (human categorization):
Modern science regards race as a social construct, an identity which is assigned based on rules made by society. While partly based on physical similarities within groups, race does not have an inherent physical or biological meaning.
WoodScientist@sh.itjust.works 9 months ago
Do you know what an actual scientific attempt to define races would look like?
Let’s say you wanted to scientifically define races. Instead of using subjective things like facial structure, you look at actual DNA and the groupings among populations. Let’s say we want to group humanity into a half dozen races, and to avoid bias, we do it based on some statistical analysis of DNA patterns.
You know what you would end up with? The computer would spit out that there are five racial groups represented the population of Subsaharan Africa…and one racial group representing everyone else.
The vast majority of human genetic diversity lies within Subsaharan Africa. If you tried to rationally define a list of ‘races,’ you would end up with a bunch of African racial groups and then one group for literally everyone else.
This is what people mean when they say race isn’t real. Our culturally-defined racial groups are completely unrelated to the actual diversity and distribution of human DNA patterns.