K but the problem is that you're assuming that Sasuke can only attack one person at a time. What prevents him from attacking more than one? For example Kabuto used the Feather Illusion jutsu to immobilize an entire arena filled with people. While that is a less powerful technique, Sharingan based genjutsu is much more powerful.
Execpt Sasuke's only genjutsu is the basic Sharingan Genjutsu, meaning eye contact is a requirement. Also there is the question of if a genjutsu like the one Kabuto used is even strong enough to control Kurama, remeber even Kurenai a genjutsu specialist had trouble dealing with Itachi's genjutsu.
The other thing to consider is that while Naruto and Kurama were not on speaking terms when Sasuke first dispelled Kurama's power, there are two important things to take into account. One, Naruto was in a clear position to at least prevent Sasuke from neutralizing Kurama. The second was that at the time, Kurama had several moments to dispell said genjutsu and admitted to being powerless to stop Sasuke. Now the obvious answer to this would be for Naruto to attack Sasuke, but as we know Naruto is terrible at dispelling genjutsu meaning that Sasuke could easily paralyze him inside of his own mind.
Though I have to agree with you on the Sharingan genjutsu offensive thing. It's the only theory that makes sense considering the Sharingan's capabilities.
@Shawshank
Interesting theory, but Naruto is more likely to overwhelm an opponent with Shadow clones than to think that far ahead. He should have learned to fight like that considering his opponents, but when you have Tailed Beast Bombs at your disposal there's almost no need for it.
That occurred after the Heaven & Earth Bridge incident and Naruto's vow not to use Kurama's power again, so Naruto really had no reason to stop Sasuke, and as for Kurama, remember that he was within a seal restricting his power and chakra but now Naruto has undone the seal, lifting the restraints on Kurama.
My apologies Shashank, it's just that whenever I see your name I think the Shawshank Redemption. The only problem I have with your explanation is as Jake pointed out earlier, the Sharingan's ability to control biju is a genjutsu. This means that when Sasuke enters Naruto's subconscious, he is doing so based on genjutsu. Genjutsu works by using your own chakra to manipulate an opponent's chakra. This means that when Naruto is under Sasuke's spell, he is in Sasuke's complete control unless he can break the genjutsu by either hurting himself or disturbing his chakra. In a one on one fight, It was theorized that Naruto would be immune to Sasuke's genjutsu bc Kurama could break him out of it like B's mon did for him. However, we had a straight couple panels where Naruto could have easily prevented Sasuke and Kurama had plenty of time to break the genjutsu. Neither of these things happened.
The other thing to consider is that while Sasuke used genjutsu on B, it was different from the one used on Naruto. He tried to immobilize B and never entered his subconsious like he did with Naruto and Kurama. My guess is that he didn't know that sharingan could be used to control every tailed beast and not just Kurama. My reasoning for this is that the only source he had for tailed beast control was the tablet in the Uchiha hideout.
As much as I prefer attacks like Lightning Blade and Dragon Flame Bombs. Sasuke's toy arrow shooter has nothing on that monstrosity. Sasuke would be bringing a pistol compared to Naruto's atomic bomb.
Another thing to consider is whether or not Sasuke could even enter Naruto's subconscious again, you have to remember Naruto was standing still doing nothing, when Naruto and Sasuke fight Naruto is going to be having to keep moving if he stands still and Sasuke was able to put him and Kurama under a genjutsu all it would take is one Chidori to the heart and the battles over.
So Minato compared a pretty simple trait from Kushina to Sakura. You can't expect more from a first impression, you know. He's not a fortune-teller, he can not tell that they have a similar backstory or anything.
.
