Wait.
What did madara, the original source say that counters what itachi said?
Side note-
obito has madara's inherrited will in him? Could have sword it was black zetsu.. and that obito was made of half white..
Tobi is also a unreliable source, a person who has told so many lies in the manga.. even things like him giving nagato the rinnegan
Once again, I stated your thing makes no sense, because Madara was the FIRST to move beyond sharingan.. and would have been recognized for that..... there were many other ms users afterwards most likely.. so shishui and itachi having it wouldn't be something to put them in power..
Shishui was supposedly a member of root
and itachi was a kid , who's mission was to join anbu and be a pipeline....not become leader of the uchiha clan
We spent hours being off-topic.
Where did Shisui, Itachi, and Izuna even get into this?
The point is it took at LEAST MS (and likely EMS) to see through Hashirama's mokuton clone jutsu as according to Edo Madara.
And that because Hiruzen doesn't even have sharingan (or a dojutsu in the first place), Hiruzen won't be able to see through it; he'll end up impaled. Simple as that. Dead.
Going back to flower power; we're going based on what we've seen Enma do. Unconscious Hiruzen. Killed while unconscious.