I am disappointed too. Hitler was a racist, hate-filled totalitarian, but so was Stalin. They were great mates until they disagreed over the division of eastern Europe: after that they were bitter enemies.

They both called themselves Socialists, and both believed in Central Planning and the submission of individual freedom to the needs of the State.

If it looks like a Socialist, talks like a Socialist and acts like a Socialist, it probably is a Socialist. Your problem, I think, is that you cannot accept that Socialism is an inherently unworkable and evil system, so struggle to accept that Hitler’s evil system was classic Socialism in action, as opposed to the fantasy of Socialist rhetoric.