grant surrounds himself in an echo chamber of people who form their opinions around his simply based off the fact he's the best player in the game. they don't think for themselves and instead regurgitate how he feels simply because "he's the best so he can't be wrong!"
i think if he took some time to practice having a discussion or talking with other people in a respectful, equal footing manner, not surrounded by his mindless zombies, i think he could grow a lot as a person and become a much more respectable person than he already is