Lebron haters have convinced themselves that he would have "bolted" had he been in any other comparable players career situation and it's really sad.
They also simultaneously beg and plead on their hands and knees for their own teams FO's to acquire top end roleplayers while having a legitimate #2 and competent depth, but will disparage Lebron for spending this first half of his career uplifting vet min fodder to the peak of the mountain.
No other marquee or top 10 player has ever been near an equivalent situation like Lebron was drafted into. There was no hope. He walked into a pathetic organization as an 18 year old and was the heartbeat, the exoskeleton, the brain and all of the organs until he left. What he did in Cleveland V1 was GOAT level. It's what established him as a rare player and the greatest to ever play the game, even without a championship. This is ignoring his performance in 2016 which stamped him.
Unfortunately he'll always have it pinned against him that he left Cleveland, but he gave them nearly a decade of high level MVP basketball every season and wasn't handed a Klay/Draymond. He didn't get eventually get a Pippen/Rodman to show him how to win a playoff round. He didn't start his rookie season alongside Shaq. He didn't even get a Westbrook/Harden like Durant did, which would have been his best surrounding cast by a mile.
That franchise capitulated as soon as Lebron left. Jordan 'retired' and the Bulls won 50 games.
Lebron left a 60 win Cavaliers team and they immediately drafted first overall the following season after winning 19 games.
These sorts of things can't be calculated or assessed without a level of objectivity. Lebron won't ever get that though. He has to be the only player in NBA history to win singlehandedly to get acceptance from a certain crowd desperate to protect the name of their gambling addicted savior.
It's actually sort of Embiid-like but on a scale much more magnified.