One may look hard for that point, but where is it to be found? How would someone in those days -- not after, with hindsight -- but in those times, be able to say -- that man is evil, not just a mere political opponent.
With the onset of Brownshirts and barroom brawls to squelch the opposition groups meetings, perhaps. Certainly Kristalnacht would be an indicator. When the Reich got involved in the occult would also be an alarming development, but that one was not likley open to public awareness, more an SS excursion at Hilter’s and Goebbel’s behest.
Interesing avenue of thought. Hitler also hid much of his background and real beliefs, creating a public persona that was very different from the private or real one. “The Pink Swastika” (online) by Scott Lively and Kevin Abrams sheds a lot of light on the beginnings and foundation of the roots of the Nazi Party and Hitler himself, as does “Hidden Hitler” by Lothar - oops, can’t remember his last name, a German historian. But the German public certainly had no idea of who Hitler really was, his private beliefs, statements and habits.