Germans didn't die for the Nazi cause, they were kidnapped into the Nazi chariot by their own dreams in an unfortunate situation and accidentally played themselves to death. There were many peoples and individuals in those times who had the same crazy ideas, only the Nazi party brought those dreams to fruition with great execution, and mobilization that is only possible in modern times. Hitler was the one who organized the great fireworks, and it would have been New Year's Eve with or without him, only it wouldn't have been as lively and long.
Hitler's own abilities were outstanding. Forget the speeches, let's talk about his political maneuvers. For example, Germany's expansion of the army is not up to expand, but first high-profile disarmament slogan, and even interacted with Roosevelt, and finally in a bunch of countries do not want to disarm the situation of Germany has succeeded in the image of a victim of "helpless" expansion of the army. Not to mention, this kind of political maneuvering is much better than Trump's style.
After the expansion of the army, Hitler also solved the unemployment problem, successfully broke the Versailles system, blitzed Poland, blitzed Norway, blitzed Paris. Not to mention the general public, many senior German officers were convinced of Hitler after the Battle of France, such as Jodl, who refuted Hitler many times during the Norwegian campaign, and Hitler accepted his views like a schoolboy at this point.
But after the French campaign Jodl became a fan of Hitler. And to the less expertly informed public, such a Hitler was a god in heaven, like the Superman in Nietzsche's mouth who was going to turn the whole era upside down for the Germans. To be honest, Hitler would really be considered one of the more remarkable leaders if it weren't for the fact that the Nazis were so extreme.