Sasuke Sasuke Sasuke... He won't kill Naruto. I hate the turn his character is taking, why can't be just mature and become the next Itachi already?
Anyway, I think that Sasuke is just being insecure about his future as hokage and talking stupidity. I don't remember who it was in Naruto who said the past is important because it made the person who they are. Someone will probably tell Sasuke and he'll change his mind.
This may just be a phase he's going through. The Vegeta phase lol, when Majin Vegeta turned around to help Goku in the fight against Majin Buu.
There is no way he would do anything to piss off the village since he wants to be hokage and they all love Naruto.