Agree on Italy, disagree on Germany to an extent. von Hindenburg being President or Wilhelm being Kaiser changes little assuming a death - in both cases there'

Agree on Italy, disagree on Germany to an extent. von Hindenburg being President or Wilhelm being Kaiser changes little assuming a death - in both cases there's a process to get someone to replace them (new elections for President, coronation of the heir apparent). Hitler's popularity and power allowed him to skip the whole process and just assume the position of Parliament too. I think that it would have been harder to do with the position of Kaiser (there were still plenty of monarchists even in Nazi Germany), but he still would have done so or at least done a Horthy, preventing the coronation and keeping himself as regent.