I heard that his father was witnessed by the Jehovah"s witnesses and "took him away" in a sense,from him because he became one and probably change himself. Maybe that's why he hated Jehovah's witnesses. because his father changed and he blamed it on Jehovah's witnesses. But i don't know if that's true.
That is pure guesswork and nonsense. The Nazis' key objection to the JWs was their pacifism.
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