What would be a good thesis statement for the themes of prejudice and discrimination in the novel The Boy in the Striped Pajamas?

Thesis Statement:

Boyne explores the theme of prejudice and discrimination throughout the novel The Boy in the Striped Pajamas by examining the relationships between characters and the adverse environment in which individuals are treated with contempt and disdain.

There are numerous scenes throughout the novel that depict certain characters expressing their prejudiced thoughts and feelings. Bruno's mother tells Pavel not to tell the Commandant that he cleaned and bandaged Bruno's wound because the Commandant would be appalled that a Jewish individual touched his son. The Commandant is prejudiced towards Jews and discriminates against them by giving the orders to Nazi soldiers to systematically slaughter them in the concentration camp. Bruno's father also displays his prejudiced towards Maria by calling her an over-paid maid. Gretel comments to Bruno that she would never play with the children at Out-With because they are dirty, which depicts her prejudiced feelings towards lower-class individuals. Lieutenant Kotler discriminates and mistreats both Pavel and Shmuel because they are Jewish. He feels that because he is German, he is superior, which gives him the right to physically assault both of them. Bruno even displays his prejudiced feelings toward other countries when he tells Shmuel that Germany is better than Poland. Bruno's grandmother is prejudiced towards the Nazi regime and voices her displeasure during a family get together.