Dasyu

Someone who doesn't adhere to the Vedic religion, doesn't speak an Indo-Aryan language and larps as Aryan on the internet because of their fair skin.

A Vedic-era word used by the Brahmins of India to identify non-Hindus, i.e. muslims, sikhs and christians. As a term, Dasyu is used to refer to the darker skin of said non-Hindus, hinting at their ancestors being lower caste converts.