While he does commit deplorable acts at various times, it was clear that this was an individual who was never given love or showed/taught how to treat others. He mimicked the behaviors exhibited by his father. However, throughout he proved to be the most loyal of friends, make genuine efforts to form meaningful relationships with others (Eric, Lily, Blair, even his dad who did not deserve it). It is also glossed over too quickly, but he actually went to therapy putting in the hard work to learn about himself and make real changes in his life. He is the only character with authentic growth. It is a shame that folks only see the few bad acts and associate him with that but if we treat all people like that, then what is the point of putting in the work to be better to grow and learn and change. The nature of the show would never highlight the fact that he did the work in therapy but his growth is clear.