Board Thread:Versus Debates/@comment-33183078-20170801101236/@comment-32617252-20170802022027

for one, itachi can only cast genjutsu on one of them, since his genjutsu doent work on everybody in range, and after he uses it, he wont be using it again after a while, or he goes blind if he does. and Naruto id essentially immune to most genjutsu, and is very likely immune to tsukuyomi, since it is a genjutsu (itachi says that only someone that is blood related to him can get out of it, but that was way before kishimoto even made the concept of jinchuriki/bijuu teamwork to get out of genjutsu).