Should Nintendo make a game where they have bowser as the Protagonist?

[NoirSon]

No, there is a reason that Bowser is only playable in party games (Smash Bros, Mario Kart, Mario sports, etc) and RPGs (M&L: Bowser's Inside Story and the original Super Mario RPG), unless you are going for a koopa civil war story, you would have to create a whole fleet of unrecognizable new enemies.