I'd have to do more research on him.
The point I'm making here is that wearing Swastikas and heiling Hitler aren't the sole criteria for being a Nazi or perhaps more accurately a far-right fascist. All the Hitler-specific stuff is just one particular frozen-in-time manifestation of extreme far-right nationalism - namely, the kind that took hold in post-Weimar Republic Germany.
But it can happen again, in any country, with or without the most familiar symbolism.