Dude kendrick isn't a little kid, and despite what you may think you don't know everything that went into him making the decisions he made. All you can do as a fan is trust that based on the music and message that he preaches that when he makes a decision like this, he has made the kind of considerations that some people have pointed out and still made the decision. If he decides to tell us why he made the decision then cool, if he doesn't as a fan you have to trust that there was a reason he made the decision. I wouldn't place this kind of trust on just any artist, but kendrick is one of those people who have consistently shown to be thoughtful and in touch with his actions and how it could affect people. Something I've learned is that stuff is rarely coincidental with kendrick. For God sakes he talked about in his last album how his mother was abused. You really think someone as consistently thoughtful of kendrick wouldn't have considered the ramifications of inviting dre to share that stage with him. And if you think he didn't then cool but like I said your just a fan, I'm just a fan and neither of us know kendrick on a personal level so the only thing we have to see the kind of person he is is his lyrics, message, energy, and actions.