“That’s not good, I’m not happy”

Well, you were before you edited your comment

He is the protagonist because the story revolves around him as the main character. I’m not saying you should like the game or the character. Him being the protagonist is independent on whether you like him as a character or the game. Protagonist literally means main character of a story, which he objectively is.

Protagonist doesn’t mean good guy, or smart guy. He’s just the main character.

It has been like that for a long time

It makes no sense