My perspective:
Sasuke: We most not die or mean the end of the world, only you and I can seal to Kaguya, you can not distract saving Sakura and Kakashi if they saved if it was because you were in front that is all
(Saying that no one in this matter more than them two and that should not die)
You understand?
(Insert here a very angry Naruto because Sasuke does not care about the lives of their friends)
Naruto: yeah I understand but as you did on the bridge my body moved by itself
They are not even talking about the usefulness of Kakashi and Sakura as ninjas, they are talking about only two of them can be sealed to Kaguya and if Naruto dies everyone also, which can not be distracted by Sakura and Kakashi threatening life
What Naruto understand is precisely that his life is more important than anything else, but only he understand and he says "yeah i understand that my life is important but can not help protect my loved ones"
Exactly this especially the underlined , I don't know why is this so hard to understand or read for that matter the context of this scene wasn't about Sakura's and Kakashi's usefulness but about Sasuke saying that only they matter because they have the power to seal Kaguya and to not give a kitten for the their lives and trying to convert Naruto to do same as him .
This is why you see Naruto's face shocked and then angry because of Sasuke's words . Then Naruto goes to say "I Do... I Understand what you are saying" ( with his angry face ) as in i understand that you don't give a kitten about anyone's live and that you say i should do the same just because we have the power to seal her ( Naruto in here only acknowledges that they have the power to seal Kaguya he's not saying admitting or agree that the others are useless because of this those are two different things ) .
Then he goes to say "But my Body moves on my own , you should know what that means right Sasuke" (insert Naruto's mocking expression ) the point of this line was Naruto mocking ridicule Sasuke's POV meaning you should understand why am I doing that because you did the same thing for me long time ago YOU LITTLE kitten , in short Naruto very much disagrees with Sasuke's POV because he's not him .
The more i read the chapter and i went over it for maybe ten times the more i'm convinced that people are just putting Naruto's words and meaning out of context and there was no : Naruto agrees Sakura's "useless" (for crying out loud he praised her two chapters ago and Kakashi in this one and that's so OOC for him and puts everything that he learned about comrades into the trash ) , there was no Sakura was hurt because of Naruto thinks she useless and yada yada yada yada ( she was hurt because she thought Naruto agreed with Sasuke but Naruto being Naruto corrected that and we see her teared up and tanking him she was moved and relieved by what Naruto said in short it was just a simple misunderstanding on her part ).
That's all i have to say for now that is .
Edited by NarutoFireFoxUzumaki, 12 June 2014 - 11:42 AM.