Is Kakashi stupid? [warning contains 635 spoilers]

[Sanguis]

and what other option does Kakashi have?

It's either fight or die

if he runs away, Obito will just follow

Then his attack was in vain because Obito already demonstrated Raikiri doesn't work on him.

 

[Lightbringer]

Then his attack was in vain because Obito already demonstrated Chadori doesn't work on him.

not necessarily; given that zetsu is a part of him, he could have rearranged the position of his organs like Kakuzu with his hearts.

 

[Flawž]

not necessarily; given that zetsu is a part of him, he could have rearranged the position of his organs like Kakuzu with his hearts.

or zetsu made his body artificial so he doesn't need to eat or poo. Lol

I stand corrected. That Raikiri really didnt do jack squat.

Which leads me to believe that it wasn't genjutsu. hmm