The Golden State thing did it for me with KD. I think he was likable beforehand, but the whole “if you can’t beat ‘em, join ‘em” philosophy for someone who is supposedly an all-time great just rubbed me the wrong way, as well as the fact that he became super arrogant afterwards when it was such a weak move. Say what you want about Lebron creating a superteam in Miami, but he didn’t just join the Celtics when he couldn’t beat them in the playoffs.
As for Kyrie, how much time do you got? The biggest thing with him is his arrogant, faux-intellectual persona. He presents himself as this deep, philosophical intellectual, but really he’s just a moody malcontent with sophomoric level opinions on trendy topics who happens to be rich and have a platform due to being good at the game of basketball. He reminds me of the stereotypical pretentious philosophy undergrad who thinks he’s so much smarter than his peers, but is really just pretentious and about as deep as a bath. Also the fact that he straight up quit and didn’t show up for us in the playoffs is a major factor in my dislike of him.