Gretel and Bruno talk about why some people live on “the other side of the fence,” and Gretel tries to explain it to Bruno using the fallacious argument with which her Nazi teachers and parents provided her:
'And the Opposite live on this side of the fence and the Jews live on that.'
'That's right, Bruno.'
'Don't the Jews like the Opposite then?'
'No, it's us who don't like them, stupid.'
Bruno frowned. Gretel had been told time and time again that she wasn't allowed to call him stupid but still she persisted with it.
'Well, why don't we like them?' he asked.
'Because they're Jews,' said Gretel.
This passage illustrates one of the fallacious arguments that the Nazis taught children about their racial and cultural superiority. Here, Gretel attempts to justify antisemitism without providing any logical reasoning for it. She explains that Jews have to live "on the other side of the fence" because the "Opposite" don't "like them." When Bruno asks why, her flat statement, "Because they're Jews," is an example of circular reasoning. This is a kind of logical fallacy where the conclusion is assumed within the premise, without any evidence or explanation: something is because it is. Gretel cannot provide any rationale for the prejudice she parrots. Instead, she’s only able to repeat the limited amount of fallacious information she has absorbed from listening to adults.
Bruno's questioning exposes the emptiness of Gretel’s argument. Rather than addressing his question, she dismisses him. By attacking Bruno’s intelligence instead of offering a substantive answer, Gretel deflects the whole conversation. Gretel’s repetition of discriminatory beliefs in this passage and many other moments reflects the dangerous power of Nazi propaganda to create unchallenged assumptions.