Parmandur
Book-Friend, he/him
His wife is Pakistani, from an area historically settled by...the Aryans (the real ones, not the Nazi propaganda ones, but still "white" by white supremacist lights), and not to get into real world religion or politics too deeply...but there was a strong strain if attraction to a certain romanticized idea of Islam in European Fascist circles. Enough that being a Nazi sympathizer might be why someone might study South Asian culture and religions...True. But with Barker, its not just his known work on Tekumel that seems incongruous with "Serpent's Wake", but details of his life. He was a convert to Islam, married a non-white woman, had many friends and colleagues who are shocked he wrote "Serpent's Walk".
People are complicated and weird, that's for sure.
So I don't find sny of that incongruous, if you examine the kooky principles he apparently held.