:::, the "of genetic superiority" part is effectively in Croshaw's voice but isn't sourced nor does it appear to be .  Secondly, "term's reference to Nazism", Croshaw explicitly says "it's a Nazi Germany reference" which may or may not mean its a reference to Nazism and as such we would probably be better off using the exact phasing that Croshaw used.  With those two changes, I think it is reasonable.