This is ahistorical because
- not all cultures are chauvinistic towards people outside of their communities
- this tendency of ethnic affiliation when it centers "whiteness" results in ostracization of people deemed to be the outgroup and the erection of caste systems. See: the Transatlantic Slave Trade of America and its ongoing consequences
- the only purpose that race serves is to confiscate resources, period. Outside of being a social construct, race is not real
As they say on these relays, DYOR
