Now what is a Volkskanzler? In itself it should be a Kanzler, so a part of a democratic government, for the Volk, so the people. And I never actually heard about Hitler calling himself that, only that he was the Reichskanzler, Führer etc.
Edit:
After the end of the dictatorship, the original meaning was transferred both directly and indirectly to well-known democratic state politicians such as Ludwig Erhard and Bruno Kreisky.
So those democratic politicians are Hitlers too now?