These aren’t Hindus
I know.
=====================================
From Google: Aryan
The earliest epigraphically-attested reference to the word arya occurs in the 6th century B.C. Behistun inscription, which describes itself to have been composed "in arya."
As is also the case for all other Old Iranian language usage, the arya of the inscription does not signify anything but "Iranian". The region Aria as depicted by Waldseemuller in 1507
The term Aryan originates from the Sanskrit word ārya, in origin an ethnic self-designation, in Classical Sanskrit meaning "honourable, respectable, noble."
==========================================
I think Hitler borrowed that "purity garbage" from them.
Since original sin became the onus of us children of God, there has been no innate purity of ANY human soul.
Sanskrit was the original written language of INDIA. India is a very, very old culture too.