Let me get this straight; You think Sasuke was an awful brother because he didn't continue to protect the village like his brother wanted? In other words, you're expecting a person who's whole family got slaughtered by that same village via the hands of his brother to protect that same village? Despite what Itachi wanted, instead of trying to solve things in a more peaceful way, this village made his brother choose to either die along with his whole clan or kill his whole clan to save the rest of the people in the village and his little brother. There was no scenario in their plan where Sasuke's family can stay alive as well.
Itachi's wishes don't change the fact that this same village slaughtered his whole family and kept him in dark about Itachi's situation the whole time even though admittedly, that's what Itachi wanted. Basically you were expecting of Sasuke to put a blind eye on the crimes this village did to his family and protect them instead of taking revenge on the people who forced Itachi into such a decision and killed his whole clan.
Sasuke is not Itachi. Just because Sasuke loved Itachi doesn't mean that Sasuke has to go along with Itachi's wishes. They're not the same person nor do they have the same mind set.
Is it?
Bold is why he's an awful brother. For spouting on and on about how great Itachi is, Sasuke never cared about Itachi's wishes or Itachi's beloved home? That seems shitty.
Yeah, you're just viewing this in a bad way. Sasuke loved Itachi as a brother and respected him for the burden he had to carry. Just because Sasuke loves a family member doesn't mean that Sasuke has to share the same wishes as that family member. Once again, despite Itachi's wishes, it's beyond stupid to say that Sasuke should have kept on protecting the village that killed his whole family and forced such a burden onto Itachi.