One thing
Hitler never drew people. He's draw streets and scenes but no people.
And he may have been 12.5 % Jewish.
and he was a homo.
Actually, he did draw people. He just wasn't any good at it.
And that's because accurate drawings of people, especially the human face is quite difficult. That's part of the reason why modern art is so popular. The other part of the reason behind modern arts popularity is because drawing anything accurately requires skill.