If you're talking about "phasing" subset of Kamui, then it's perfectly blocked by Yata no doubt.What's your point?
The s/t justu is the user
He leaves by "phasing," sending body parts one at a time until it all enters into his dimension.
He opens (warps) into the current world by sending one part in before the other into the future.
Picture it like a flip book
The real argument is about the full Kamui or long range Kamui.
Shield is not entering the dimension bro. Shield is just stopping the entity left by Obito in the real world to come back to it to the same point of time where he left.Based on what? The manga states that he's not there when he's "intangible" The manga shows that he isn't there when he actually teleports into the dimension. There is nothing that implies he's still there. "Physics" isn't an argument. "Physics" is irrelevant. How does he have an entity in the real world when such a thing was never hinted at? When there is nothing of the sort shown?
I've been saying this whole time that he's not literally intangible. He's simply in another dimension. I'm not even talking about intangibility here. I'm talking about him actually teleporting into the other dimension.
No there isn't, you are simply over-complicating things.
Except its not vanishing. Its basically just going elsewhere. So the law of conservation of mass isn't an argument here either.
And you are supporting the notion that a shield magically entering another dimension.
That's what I'm telling you here.