Anger and cruelty is all they have to navigate their fragile emotional landscape. They are emotionally too uneducated to come up with anything different than hate. Or to use the words of a german punk rock band:
You're stupid as a pig
That's why you're feeling good
Hate is your attitude
Your blood is constantly boiling
Everything has to be explained to you
Because you really don't know anything
Most likely not even
What attitude means
Because you have problems that no one cares about
Because you're afraid of cuddling, you're a fascist
You don't have to project your self-hatred onto others
A Die Ärzte reference in the wild! I love this song...and a lot of their other ones. They even slip it into "Ich, am Strand" - Ich auf Demo: Nazis raus!