Propaganda In The Book Thief

In the book The Book Thief by Markus Zusak the words sprout from the trees relate to the political situation in Hitler’s Germany because Hitler was all hate he wanted the world to be “pure” meaning in his words the world being only blonde haired blue eyed pure germans and anyone who doesn't meet that strict criteria were treated like vermin and was either worked to almost death or just sentenced to death. And all the words coming from the trees were all hate propaganda