Jordan is the GOAT, no doubt. Kobe is likely just outside of the top 10. Lebron is No. 2 or even 1B to Jordan's 1A.
I do agree that Jordan and Kobe were stone cold assassins, but Lebron has never had to play that style of basketball. He's a freak athlete that Jordan and Kobe could never even come close to being. We have seen very VERY few people have the kind of athleticism that Lebron has. To be that big, that strong, and that fast...it's something we as sports viewers have never seen before. Megatron MIGHT have an argument to be in that class of athlete but it isn't a strong one.
Lebron is 39 years old and is still playing at the highest of high levels. He's going to be 2nd team all NBA this year...at 39. Jordan and Kobe were shells of their former selves at that age. Hell, Lebron is a shell of his former self...but he's still a top 7 player in the league.
I know we all have opinions, but I feel like you're writing off Lebron is the potential GOAT simply because he didn't play with the same grace as MJ.