But he is better than the rest of the league. It's not that close either. The Decision was poorly executed, he owed it to Cleveland to tell them earlier, but at the same time no other player has ever been courted in free agency like LeBron was. The Knicks began shedding salaries to get space to sign him three years before he was a free agent. Almost half the teams in the league were trying to dump salary at the trade deadline so they had room to sign him. The pursuit of LeBron was unlike any other NBA player ever.
As for Cleveland not having a shot to win, LeBron had one of the all time greatest playoff series ever against Orlando. He was incredibly clutch that series too. He did everything he possible could to win that series. And the Cavs still lost. The next year he watched Antwan Jamison and Mo Williams come up small over and over again against the Celtics. He put up a 27/19/10 in the elimination loss. In '08, LeBron scored 45 in Game 7 against Boston and the Cavs lost.
LeBron was clutch over and over again for the Cavs, but the media narrative became LeBron isn't clutch and lacks a killer instinct and the revisionist history of his time with Cleveland was written. LeBron was the only reason the Cavs were anywhere near the Finals to say "he had teams to win, he just didn't do it" is incredibly ignorant. The Cavs were a 25 win team being turned into a title contender by one man.