1. He said ONE OF, not THE
2. Incorrect, he is great.
3. A great musician can sing or rap about anything he wants. Bragging about material things has nothing to do with whether or not a person is a great musician or not. It does reflect him as a person, and his character, but that doesn't have anything to do with his music.
4. Have you listened to Kendrick Lamar or Lupe?
5. Kendrick grew up in Compton, his best friend, who was basically a brother to him was gunned down last year. Didn't go through the shit Tupac and Biggie went through? Think again.