If I were a Cavs fan, I'd have to consider him a major traitor.
The truth is, he burst their little bubble for this coming year, the last year of LeCarpetbagger.
They were most likely all ready to make another finals run. With Irving replaced by IT, not so much. Even if they get into the finals, and they actually may, IT will be abused by Golden State something fierce. Who will they hide him on? Curry, Thompson, Green?