The weird thing in all of this is I never considered Kareem the GOAT (top 5 conversation in the Jordan era sure, but he's been slipping the last 25+ years since he retired and the Kobes of the world joined the league) and LeBron taking the scoring title doesn't add to any claim he has to that title in my mind either.
In my mind LeBron will leave one of the most complex legacies of any pro-athlete up until this moment in time. The "Decision" was a vanguard moment in sports history, almost as important as the very first free agent ruling and contract in all sports. For many of us who were fans for 25+ years before that moment, it was appalling. For others it was the beginning of a new era of player agency and represents true freedom for "employees" to seek what is best for them. Despite the money at stake, some view this simply like a union negotiating a 3% pay raise for a 3 year contract, or a routine 2 weeks notice for a new better paying job.
Unlike Jordan who was given GOAT status almost immediately after his first retirement if not before, I think LeBron's legacy is going to have to marinate for a few decades until we see if the decision represents the new normal, or a moment in time. The scoring title is secondary to ring chasing, and leaving skeletal husks of a franchise in the wake of each move he made after the fact.