Also from the interwar period there's Maurice Samuel and his Khazar supremacist creed You Gentiles (1924), where he boasts that the Jew cannot ever integrate into Gentile society and will forever work to undermine & warp the latter to serve Jewish ends, and that's a good thing! But I prefer to think of it as a 200+ page treatise as to why Hadrian and the Catholic Monarchs were right about his kind.