Obito (& Kakashi) Kamui jutsu could be sharingan genjutsu..
The possibilities of Kamui is part of Genjutsu with Sharingen
Based on Itachi.. jutsu..
When Itachi and Kisame on learning that Naruto left the village.
Kurenai used genjutsu on Itachi, but instead she also being genjutsu by Itachi.
The fact that genjutsu had no effect on Uchiha.
Later, Kakashi fought Itachi, but was inside Itachi using illusion tsukiyomi jutsu.
As being in another dimension, lasted 3 days within seconds in S/T
The same applied to Kabuto, when was also affected by Itachi jutsu.
It look like the Kamui also being in similar way;
Space, Time & Matter.
There is also possibilities that different Uchiha bloodline could use S/T sharingan jutsu.
Discussion..............
The possibilities of Kamui is part of Genjutsu with Sharingen
Based on Itachi.. jutsu..
When Itachi and Kisame on learning that Naruto left the village.
Kurenai used genjutsu on Itachi, but instead she also being genjutsu by Itachi.
The fact that genjutsu had no effect on Uchiha.
Later, Kakashi fought Itachi, but was inside Itachi using illusion tsukiyomi jutsu.
As being in another dimension, lasted 3 days within seconds in S/T
The same applied to Kabuto, when was also affected by Itachi jutsu.
It look like the Kamui also being in similar way;
Space, Time & Matter.
There is also possibilities that different Uchiha bloodline could use S/T sharingan jutsu.
Discussion..............
