To grunch this point a little bit, Bronny did more or less get Lebron's athleticism, just 8 inches shorter. He is athletically (and phsycially sized) comp to an NFL football player; which is actually still extremely athletic. There are videos of him dunking in 8th grade.
My son is 13 and plays club basketball (at the much much lower suburban recreational level; not future D1 talent level). Even the big, athletic black kids no one is dunking yet. If his team played 13 year old Bronny, he would probably have been the best athlete they ever played against.
Lebron is a freak because he is 6'9" with the athleticism he has. If Lebron was 6'1" he wouldn't have been.
Bronny's main problem is that he doesn't have an elite point guard skill set, which is what you need to make it at 6'1" in the NBA. There are no 6'1" shooting guard/wings. Bronny didn't even play point guard in high school. Mac McClung is a comp of an insane athlete at the same size, but also didn't have the requisite skill set and never made it.
Ironically, Lebron's other son is much taller but actually didn't get the athleticism. He is still going to play D1 basketball (commit to Arizona), but no one is talking about him even being the talent Bronny was. If Bronny was the same height as the other son with his athleticism and skill set he would probably be a serviceable 3 and D NBA wing, if not better.