Aryanism is first and foremost racial, but certain traits have definitely been seen as characteristics of the true Aryan in the past. This is the reason, I think, why Proto-Indo-Iranian *Áryás, which was originally confined to being a self-referential ethnonym for Aryan peoples, took on a less racial sense in time in the Indian subcontinent in particular, basically widening in meaning to "noble", someone of good qualities, someone who is highly esteemed, etc. This description was evidently applied often enough to the top Aryan castes that it become a general term for anyone who was honorable and noble. A true Aryan though, in my mind, is one who embodies both the racial and virtuous qualities of an Aryan. Anyone can be "White", but to be Aryan is a higher type of White, especially in modernity.
>Can there be non-White Fascists
Yes, they'd merely be nationalists for their own nation though. Fascism can pop up in any nation. It doesn't automatically make them allies, of course, but in the heyday of Fascism we saw it pop up in numerous countries, and places like Japan have had their own periods of Fascist-esque governments