Yes, they are alreading sharpening their forks and oiling their torches. I
think officially recognizing it ("Jews are bad") will drive normal people to don't consider them (the extremists / nazi) conspiracy nuts anymore, because of a "they / we were right all the time" discourse.
I apologize for basically repeating myself. I just wanted to refer to the conspiracy theories you mentioned because calling them that is, ironically, constructive.