Dont forget that Hitler wasnt Aryan.

No, but he had a morbid fascination with them.

I never thought about it, but yeah, barbie and ken are kind of incestuous.

Well most of the people Hitler claimed to be aryans are not. Most of the top nazi's were not aryans at all. Hitler was just obessed with the idea of the aryan race

Plus, you know..

The whole fact that aryans aren't really blonde haired/blue eyed folks that Hitler squawked about. Aryans were tribal people of the Indochina region.
They were, most assuredly, not blonde. Nor blue-eyed. They were, as speculation from those inhabiting the regions currently, fairly dark-skinned, with brown eyes and dark hair.
Hitler clung to the ideal of Nordic genetics, pretty much.