Not really. Before 1939 Hitler was admired everywhere (including USA - he was made the Man of the Year by the Time Magazine TWICE!) as a great leaders who saved his nation from Great Depression and from humilation.
The problem is that people who want to avoid the fate of Chamberlain invent the "second Hitlers" like Milosevic and help really bad guys (like Islamists invading Balkans).
The next Hitler will come the most unexpected direction. The history does not follow predicable Hollywood scripts and Hollywood movies are the main source of popular historical insight. Few people read Aristotle or Machiavelli, almost nobody reads Thucydides or Simone Weil.
In the 30's, everyone knew the Germans were going to attack at some point. Even Mussolini asked for more time to build his military. Jews were leaving Germany en masse with tales of repression.
Auschwitz, Dachau, et al indeed magnified the thought of death as a 'final solution' as policy. But was Auschwitz the end of the beginning or the beginning of the end?
Check the Communist killings in Russia, China, Cambodia and the advocacy of sides in today's Near East. Not to mention abortion, euthanasia as problem solvers. The last Pope has written on 'The Culture of Death'. Pervasive.
Death as a solution is not dead.
Any clear thinking person with a good education in European history and culture would have (and in some cases did) recognized what Hitler was very early on. The problem is, in the modern world, such a recognition is extremely uncomfortable. It forces one to face the fact that whatever current utopian scheme that flies in the face of human nature is going to fail and that some sort of extreme action is pending. One can either, at that point, face the facts and take a smaller extreme action sooner (as *could have* France and the UK, back in, say, 1937 or so) or, one can kick the can down the road and pretend that the monster has not risen out of the swamp. At its most psychotic level, indeed, people do as you have noted try to turn the monster into a "Man of the Year" or some sort of mega wonk who makes the trains run on time. But to the truly observant person, a monster is a monster. If it quacks like a duck, and walks like a duck, then it sure ain't a chicken.
Not if but when the next Hitler (or set of them?) pops out of the woodwork, as with the past, the truly observant will perceive it. But will the truly observant have the clout to drive the necessary extreme action? I am pessimistic about this and say "probably not."