I am not saying that is all it take to make Hoshido bad, but overall no side is truly bad not even Nohr. In Nohr, Hoshido invaded Nohr when Xander retreated after Kamui stay with them and as well as wanting to get Kamui back. In Hoshido, after losing Kamui who the Nohrian royal siblings considered as the savior/light to their dark kingdom proceed to just to invade Hoshido as well as maybe wanting Kamui back. The Nohrians are just as righteous as any good Hoshidans, Nohr didn't even committed anything evil beside wanting Hoshido's land so they can feed their people. I just don't see any reasons to make Mikoto evil or some craps.