Shortly after James announced his decision last week, Gilbert fired off an incendiary letter to Cleveland's fans, ripping the 25-year-old and promising to deliver a title before James wins one. He called James' decision "cowardly" and later told The Associated Press he believes James quit during a handful of Cavaliers playoff games.
"He has gotten a free pass," Gilbert told the AP in a phone interview late Thursday night. "People have covered up for (James) for way too long. Tonight we saw who he really is."
Jackson said Gilbert's comments were "mean, arrogant and presumptuous."
"He speaks as an owner of LeBron and not the owner of the Cleveland Cavaliers," the reverend said in a release from his Chicago-based civil rights group, the Rainbow PUSH Coalition. "His feelings of betrayal personify a slave master mentality. He sees LeBron as a runaway slave. This is an owner employee relationship - between business partners - and LeBron honored his contract."
Messages were left Sunday night seeking comment from Gilbert, the Cavaliers and James.
Jackson also called Gilbert's comments an attack on all NBA players and said the owner should face a "challenge" from the league and the players' association.
NBA spokesman Tim Frank declined comment.
