Yes, I have studied Hitler - quite extensively. Sure he had differences with Marx. So did Lenin with whom Hitler also had differences. They were all espousing different variations of socialism though just as Trotsky differed from Stalin. Mussolini and Hitler were both men of the Left. The Fascism they advocated was clearly a form of socialism. They were each closer to Stalin's "Socialism-in-one-country" than Trotsky's global socialism. The Mensheviks differed from the Bolsheviks. They differed somewhat from Mao. They were ALL SOCIALISTS.
For that matter, name one of his biographers of note who says that Hitler was an ideological socialist.
He used populism because of the depression in post-WWI Weimer Germany. He never expressed any interest in the people...only in German nationalism.
You are blinded by your bias.
Socialism and Communism have the same end result.
It’s merely a matter of how they get there and how long it takes.