It's wrong to judge someone based on their name.
Kyle is in class, and he just met a guy that's named Usama.
Kyle wants to remark on Usama's name.
Kyle tells Usama that it sucks that people probably make fun of his because of his name.
Kyle asks Usama if he's a member of ISIS as a joke.
Usama appreciates that Kyle is able to understand what it's like in his shoes.
Usama feels insulted and doesn't want to talk to Kyle anymore.