Board Thread:Theories and Speculation/@comment-36512555-20200202084241/@comment-26636534-20200206120754

Squinty97 wrote: I think it depends on the type used. In all honesty Kishi left Genjutsu very underdeveloped compared to the other ninja categories.

For the most part, I think you're right. A Chunin theoretically could catch Hashirama in a Genjutsu, which he'd most likely break with ease.

But there's Genjutsu for immobilizing and Genjutsu for deceiving. The deceiving type Genjutsu, though harder to use (apparently), is harder to detect when done right, and therefore the victim may not even know to try to break out. Like how Danzo never tried to break Sasuke's Genjutsu on him, because it was so subtle that he didn't realize it was Genjutsu.

So while I think Genjutsu immunity doesn't exist, the higher you attention to detail, the higher chances of you knowing you're in a Genjutsu and therefore breaking out. That's why the Sharingan is so potent against Genjutsu; they take in every detail, and they can also see chakra. It makes it so making Genjutsu believable to Sharingan users is extremely difficult

Yeah, for as much as genjutsu is one of the three pillars of ninjutsu it is way underdeveloped across the board. Also, I do want to challenge this notion of Tsukuyomi being nearly unbeatable. I get that the damage occurs very quickly, yet I don't consider that to be in and of itself an authority to say no-one can dispel it.

Every jutsu has a weakness, words that Itachi firmly believed.