Nobody is literally Hitler because the man is for sure dead. Also nobody is literally nazi, as the party was disbanded, so we are all here somewhere on the spectrum between being and not being Hitlers, nazis, fascists or what not, if nothing else, by the fact of being humans (or other sort of sentient next-token-predictors).

Why did you bring up Hitler? Blood libel predates that man. Blood libel is the baseless accusation dating to pre-modern tomes that Jews were/are murderers.