Why did the perception of what a race even is shift so dramatically in the XXth Century? Beforehand most people saw race as a heritage of common descendance from a single person or a group of person participating in the same ethnohistorical event - like how the Old Testament call all races and tribes by the name of their progenitor.
Nowadays however "race" as contentious as it is, is used exclusively for vague genetic markings no sane man would ever try to ascribe to a genealogical tree - when it's not used purely to describe a single skin color. What the fuck caused that shift? Why is the old vision of race essentially buried six feet under when it's a perfectly valid way to interpret heritage through a ethnohistoric lense?

Unironically because of the written word conflicting with the oral tradition and the West's inability to reconcile with everyone else just not giving a fuck about their ancestry.

>>17761396
>Unironically because of the written word conflicting with the oral tradition
Could you explain? I'm not sure i even get your point here.

>>17761396
>and the West's inability to reconcile with everyone else just not giving a fuck about their ancestry.
Are you retarded unironically? Ancestry is hugely important everywhere . Especially China and India.

>>17761301 (OP)
I think it has to do with discoveries in the field of genetics and attempts to incorporate both historical (written) and advances in scientific knowledge into a more unified theory or model to explain everything. This led to various concepts of eugenics, which then became a big no-no after the black propaganda campaign launched post-WWII, mostly by marxists. So everything related to race is left in a muddled and confused state.

It is also highly politically charged to even imply that races are a real thing in academic communications now. So the state of scientific understanding is essentially frozen, captured by well-paid promoters of political ideologies who, in a very unscientific way, bully anyone who has a different idea. This has gotten worse over time, to the point where several people were forced to give up their nobel prizes because their ideas eventually became politically incorrect.