I think the point being made is that Hitlers obsessions, risk taking and drive were the factors that brought Germany to war and to its high water mark in 1942. Without those Germany's likely Facist type leader Is probably a Pinochet type figure, with no Nazi party and no WW2 and Hitler making a living as a grumpy Artist.
Hitler's flaws come with the successes and are inseparable from what made him successful earlier in his career.
I don't think CalBear meant "madman" in the clinical sense of a drooling lunatic in a straight jacket suffering from psychosis but that Hitler's worldview and his ideological goal of killing all Jews, Roma and most of the Slavs were crazy/extreme.
After all, Himmler, Goebbels, Heydrich, Bormann, Goering and the rest of the Reich leadership shared the same views since they were true believers as well.
Only a Nazi deals in absolutes....Hitler was mad as a hatter, but he was anything but disorganized. Hitler was driver by his obsessions (actually most people are, to some degree, but Hitler was hyperfocused). If something removed that focus, that obsession, the likelihood is that Hitler never reaches power. The same things that destroyed him were the things that led him to power, that gathered his nasty herd of minions to the Nazi standard, and that gave him the push to throw the dice time after time.
A stable, reasonable leader, the sort who would put his personal desires aside for the good of the overall plan, would never have made the series of remarkable bluffs that led the Reich to the point where it could fight WW II.
Just joking.Not that I disagree with what your points,but what I am trying to say is that you are all being way too absolute.