How is the theme of hatred evident in the text?

Being a story about the Holocaust, at its core, The Boy in the Striped Pajamas explores the deep and essential question of peoples’ behaviors during desperate and horrific times. In such moments, do people choose goodness and compassion, or do they choose to blindly follow authority and show cruelty? While the characters of Bruno and Shmuel exemplify innocence and kindness, the characters of Father and the Lieutenant show a cruelty toward the Jews that can only be based on hatred.
When Bruno moves from his house in Berlin to live at “Out-With,” he begins to recognize the injustice firsthand when he sees the Jewish boys and men living on the opposite side of the fence. When Bruno asks his Father who the people are, his father answers, "Those people . . . well, they're not people at all, Bruno . . . at least not as we understand the term." This quote is one example of the theme of hatred in the novel. We see how this understanding and definition of the Jews as “not people” led the Nazis to unspeakable crimes against them.