Hitler and Vegetables

Listen here, you chucklehead. You probably think that if you're forced to eat your veggies as a kid, you'll hate them forever. Well, that's what the joke suggests about Hitler. It's like, 'Oh, he must have hated his greens so much that it turned him into a monster.' It's playing on the idea that bad experiences in childhood can mess you up. It's dark and absurd humor, alright?