)
He's my least favorite for all the reasons you listed, too, but here's what gets me the most:
I get that the intention was to make him an audience surrogate character, someone that the young male viewer could place himself in the shoes of. The biggest problem with that, however, is that he absolutely _*fails_* at it. After all, how can the young audience members identify with a boy whose father is a billionaire CEO, whose mother is an actmovie star, and who grows up with maids, butlers, and Doc Brown as his grandpa? I'm pretty sure most kids don't have that, even in Japan.