When it is given form (Meaning if one were in the midst of using it )yes kamui can remove it.
Kamui has already shown it can warp away chakra based attacks which inherently have no psychical form.
Any naysayers are merely oblivious to how it works or are super buthurt about it
Do i believe obito can beat itachi ? Hell to the nah.
No it wouldn't read this if you have the chance.....
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yata can be touched therefore it has a physical form. and kamui already pwned onymoudan which can undoes jutsuNo it can't. Yata mirror has no physical form. Even attacks from the astral plane have no effect against.
Well, that's assuming Obito has RANGED Kamui. Corporial would get him sucked in. If he has BOTH Kamui then he has both Mangekyo Sharingan. Having both Kamui makes him much more lethal and (potentially) have Susano'o. Obito would have been quite lethal if he had both of his Mangekyo Sharingan (although they'd both burn out--unless you consider half of his Hashirama-DNA-artificial body, wich kept his left Kamui from burning out).
The sword has a form when being used.
The debate on what that precise form still continues yet,one thing cannot be denied,it still has a form.
I also saw no evidence or even anything from the manga that even remotely hints at anything on your thread being remotely true.
Therefore your statement holds no weight.
You also go on and contradict yourself stating its like fluid at some point which is a psychical property.
The likeliness of obito ever warping it away due to its ability retract and move around almost formlessly gives itachi time to get it from harms way,but make no mistake about it obito is not touching it he is simply warping the space around it and since it inhabits that space it too will be sucked in.