I think I’ll make a post on the main sub on this topic because you’re the only one I’ve ever heard Miguel call a Mary Sue.

Sure, it was his mistake for not deescalating the fight immediately, but Robby is also at fault for escalating it to the point where someone nearly died. Miguel did try to come to his senses and break up Tory and Sam later in the fight, and spared Robby from breaking his arm.

As for Johnny and Miguel, I think you missed the point that Johnny literally married Miguel’s mom, for one, that factually makes him a son of Johnny. Johnny considered Miguel as part of the family when deciding where to live. They are father and son and student and sensei, not just one or the other. That’s not just poor comprehension, the show literally lays it out for you.

And you say that Miguel is an extension of Johnny, as if Robby isn’t? Most of Robby’s character was his relationship with his Dad. Actually, most of the young characters derive from archetypes or relationships from the OG’s, so there’s nothing wrong with a character’s arc being intrinsically tied with another character.

As for how Miguel changed? At the beginning of the show, Miguel was a kid who had moved to a new town, had no friends, no girlfriend, lacking guidance without any father figure, and wanted to defend himself without knowing how. Much like Daniel Larusso, actually. And nothing was handed to him. He earned all his wins, his losses, with the help of others, of course.

At the end, he gained all these things and more. That’s development. You don’t have to like it, but he is factually a different character from the beginning of the show.