The real point isn't any of this tho. He has no idea how to make other players better. I agree that his shot selection is terrible, but that's not the reason why everyone hates him.
It's that his play is inconsequential. He doesn't help the team in anyway.
Bottom line is whatever he brings to the table ie 26 points every 10 games is nothing we couldn't get out of pretty much any player in the league who could shoot
IMO he has to prove to the team that he deserves to play every minute that he is given.
I honestly don't know how he looks Amir in the eye everyday