Hitler did not invent the "stab in the back myth" which he exploited. He did not invent the National Socialist German Workers' Party which he took over, and he did not found the SA, or their street bully tactics which he exploited. Every measure which lead to the recovery of the German economy in the 1920s and -30s was the product of initiatives and policies of the Weimar government.
His one great coup was in intimidating Neville Chamberlain. Édouard Deladier was not fooled, but he knew France could not face Germany alone, and he was therefore obliged to fall in with Chamberlain's idiot appeasement plan. When he arrived back in Paris after the Munich conference in 1938 which effectively handed Czechoslovakia over to Germany, the crowd at the airport began cheering. He turned to his secretary and said: "O, les cons
"--which means "Oh the turds," best translated as "Oh, the assholes." He knew what time it was.
Hitler completely misjudged Churchill's resolve, he completely misjudged the power of the United States when he idiotically declared war on the United States to support a Japanese "ally" who didn't care if he lived or died. He completely misjudged the resolve of Stalin and the resources of the Soviet Union. He completely misjudged the value of strategic bombing without proper fighter cover (which he didn't have, leading to largely ineffective night bombing missions), and the alleged value of terror bombing. Terror bombing didn't work on England, it didn't work on the Soviet Union, and it didn't work when "Bomber" Harris did it to Germany (ignoring that it hadn't worked when he, Harris, had done it to the Iraqis in the 1920s).
He had no idea how to use his naval resources--he squandered his destroyers in a pointless fight for Narvik, and at a time when the Germans has the best destroyers in the world, with the possible exception of the Japanese Imperial Navy. He attempted to use his high quality battleships and battle cruisers as commerce raiders when he didn't have overseas bases for them, and couldn't provide them air cover. Bismarck
was crippled by open cockpit biplane torpedo bombers who could not have survived had there been anything like air cover. Gneisenau
and Prinz Eugen
ran the English Channel in broad daylight in 1942; the fighter commander, Adolf Galland, kept figher cover over the ships at all times, and they shot down every torpedo bomber the RNAS sent at them. Yet Hitler continued to think of his battleships as commerce raiders. Gneisenau
so badly damaged in an RNAS and RAF air raid that she was taken back to port for a complete overhaul, and then was finally abaondoned. Scharnhorst
was sunk off the coast of Norway operating alone against the Murmansk convoys. Tirpitz
was so badly damaged by RNAS and RAF air raids in her fjord in Norway that she never again put to sea. Graf Spee
had already been lost in the Battle of the River Plate, when attacked by three Cruisers, two English and one New Zealander, and was scuttled by her captain who then took his own life. Scharnhorst
had already demonstrated what they could have done to the Royal Navy during the Norway operations, and Hitler squandered that resource. Bismarck
in the Demark Straits in seven minutes, with the loss of all but three of Hood's
complement of 1400 men. Hitler effectively squandered that resource, too, by making a commerce raider out of the toughest battleship in the world at the time, with the exception of the new Japanese fast battleships. The United States didn't have anything to match it until North Carolina
came down the ways.
In 1941, the Germans invaded Crete in the attempt to cut off the British and New Zealand troops there--although they failed to prevent the evacuation of those troops, they achieved all of their other objectives, at great cost. Kurt Student's fallschirmjäger
(paratroops) suffered extremely high casualties, but Student learned everything he needed to know to prevent a repetition. However, Hitler forbade any more large scale airborne operations. The Allies, though, learned a lot, too, and they used what they learned to use airborne troops effectively throughout the remainder of the war, both in Europe and in the Pacific. The fallschirmjäger
, Germany's most highly trained and best equipped troops effectively became very expensive infantry.
Hitler did nothing effective to support Rommel in Africa, until it became apparent that the Germans would be driven from Africa. He left it to the Italians, who squander their navy and their merchant fleet in the futile effort to keep the war in Africa alive. Then, when all was obviously lost, he poured troops into Tunisia. Rommel described it as the largest self-supporting prisoner of war camp in history.
He would not allow von Paulus to fall back from Stalingrad with his battered Sixth Army, and when the river Volga froze, the Soviet Guards divisions (their elite formations) poured across the river and went through the Italians, Hugarians and Romanians like a hot knife though butter. The Sixth Army was cut off completely. Hitler's response was to promote von Paulus to field marshall, saying no German field marshall had ever surrendered.
I could go on like this for many, many pages--preventing jet fighters from entering production until it was too late, holding the armored divisions in the center of France as the Allis poured troops and supplies into Normandy, using the V weapons as terror weapons. However, there's no need.
Hitler was stupid, and you'll never convince me otherwise.