The greatness came from Coach Lue, not LeBron.
In 2016 Game 7, LeBron tried to quit on his team but Coach Lue didn't baby him like so many other had in the past. He pointed out his stats when asked to do more and was ready to quit yet again and lean on his stats to paint a fake narrative.
Then, when LeBron shrunk again in the final moment and needed Kyrie to drive the bus home, Lue called up the iso switch on Steph and Kyrie delivered.
In the game that he claims made him the goat, not only did LeBron try to quit on his team, but he revealed that he could not deliver in the moment and that when it mattered most and in the most crucial moment of his basketball life, his real identity is not a bus driver, but a bus rider.. Kyrie's passenger.