This is only true to LeBron haters, revisionists, or those with a low BB IQ.
No one wins the championship by themselves. Even Jordan needed help to win. He didn't win a championship (not even a division championship) until 6 years later, while Chicago built a solid TEAM around him.
LeBron waited 8, with no help in sight.
How can you say there was "no help in sight"?
especially when your team had the best record in the NBA 2 out of you last 3 years, thanks to some weaknesses your team get beat soundly in the NBA Finals, and you shriveling up like a scared puppy dog in the Eastern conference Finals against Boston.
The Cavs were plenty good enough to win an NBA title. Lebron was just not mentally tough enough to bring it home.
Congratulations on a championship and an amazing run.