Board Thread:Naruto Discussions/@comment-27550669-20190130125246/@comment-31715856-20190204154032

FlatZone wrote: Since you apparently need me to repeat things I will. Naruto himself in the 4th War told B that if he was hit with Tsukuyomi it was over. Was B a perfect Jinchuriki? yes. Was he a Kage and above level ninja? yes. The author is the one who chooses the words that Naruto used in that moment. Perfect Jinchuriki's cannot escape Tsukuyomi and if they did it wouldn't matter because it would be over for them.

And? Naruto wasn't a perfect Jinchuriki at the time, nor did he know that being one made one virtually immune to Genjutsu. Naruto was basing this entirely on what happened to Kakashi and Sasuke. And as for the author choosing words, Bee's 4th Databook page says:

"His strongest battle form has an excess of chakra, strength and form. If he uses his perfect connection with the Eight-Tails, he renders even powerful Genjutsu ineffective."

That text carries a lot more weight than Naruto not being aware of a particular benefit of working together with Kurama.