Which is why Hinata is missing for over half the manga, Which is why if you compile ever page with Hinata on it Sakura's would outnumber her by about 200x
Yea ok we're all just blind and you're the only one with eyes.
Behind a tree, behind Naruto, in a dark alley ofc
And a majority of those panels are her being silent and/or blushing, or stuttering and fainting. She literally only has maybe three to four moments that stand out more, but even those are ONLY about herself, not "herself AND Naruto", much less any real development for either of them individually, much less romantically.
You can be important without being used a lot, but you have to make an impact with the moments you do have. Naruto didn't care that it was Hinata specifically being downtrodden by Neji. He hated it because it was against his core values, not because he cared about Hinata.
The Bulls would have had major issues winning their championships in the late 90s without the rebounding and defense that Dennis Rodman provided, even though he rarely shot the ball.
Hinata is no Dennis Rodman.
It's why I say that pretty much every "Hinata moment" in the manga were times that Hinata could have been easily replaced with virtually any other character and it would not change the narrative in the least. it's also because Hinata is grouped with "everyone else" as Naruto's "precious people"; he saw the entire village as such. Sakura and Sasuke were really the only people that Naruto actually showed different dynamics with. Even when Naruto went six to eight-tails, nowhere does the story or himself state that it's because of Hinata's "death" specifically or mentioning Hinata in any romantic fashion, but because of him losing all hope in himself in not being able to protect "someone right in front of him" and thus questioning how could he protect everyone.
Getting back on target: Sasuke kills Sakura, Naruto goes dark, yada yada, let's say he can't immediately kill Sasuke, whose the first person he lashes out on and blames? Himself? Sai, Shikamaru?
We're talking full on Obito 2.0 only crazier and Kurama enabled.
Given how Naruto was at the time, he'd most likely try to take all the blame himself, but he more than likely would not target Sasuke for any revenge. He would more than likely, similar to Sasuke and his road of vengeance, go after those behind Sasuke and, similar to how he went crazy against Orochimaru, believing that Sasuke "would never" have done such a thing if it weren't for them; that they MUST have somehow forced Sasuke to kill Sakura, much like how he just could not accept Sasuke was leaving Konoha for Orochimaru of his own free will, trying to place the blame entirely on the Curse Seal and whatnot.