@Cervaise also addressed the unclear origin of the slogan yesterday in a thoughtful post in the ‘compendium of horrors’ thread.
Where did they pull that slogan from then, I wonder, and what exactly is it supposed to convey? I think @Horatius has it right (this post snippet also from the ‘compendium of horrors’ thread):
And while we’re debating the potential “historicity” of this particular slogan, “One of ours…” let’s not forget: A whole lot of these neo-Nazis aren’t actual historians either, and they probably all accepted the SS origin of the phrase. Even if we’re all wrong about the actual source, I’d bet good money they chose this wording because they themselves believed it was Nazi.