I didn't/don't hate Tim Duncan, Manu Ginobili, or Tony Parker because they were/are champions. And, while I hated on Michael Jordan as a champion, it wasn't because of the way he acted. This is a different type of hate.
I used to be a big fan of KG so that should tell you something. It's not simply because KG is a champion. It's because he's such a punk ass as a champion. His humility is gone. His reverence for the game has turned into lame toughguy tactics. It's not because he's a champion. It's because he's a champion that acts like a ing bag.