You know, after watching some older films, I think Naruto suffers from a God complex.
One part of it is this, and it fits Naruto so well.
The person is highly dogmatic in their views, meaning the person speaks of their personal opinions as though they were unquestionably correct
Its a side effect of Naruto's morals not being questioned nor explored.
In theory, Naruto's morality is suppose to be similar to the audiences. The ninja world indoctrinates everyone into seeing themselves as disposable weapons; conditioning them to accept as well as even commit immoral acts. He was such a bad student that he wasn't indoctrinated like the rest; so kept a proper moral compass. That is similar to the author's or at least what he thinks his customers would agree with. However, since Kishi thought everyone would agree with Naruto that meant that he felt Naruto shouldn't be questioned...or didn't realize that it should if for nothing else to help flesh out the story.
Which leads to scenes that can be summed up as:
Naruto: X is wrong.
Other Character: Well, I think-
Naruto: Shut up and just agree with me that X is wrong.
Then the story make it so Naruto is correct about whatever X was.