achi for the most part is in the top 5 of the most plot
relevant characters in Naruto. Had it not been for his
massacre of the Uchiha, Konoha would of been enveloped in
a Civil + Shinobi World War and ended up in the
destruction of the village. His actions were justified. He
ended up giving Sasuke his MS via his death and his EMS
through the transplantation of his own eyes.
wrong.
his actions were evil and deplorable.
he helped start the 4th shinobi world war by helping to kill 6 jinchurikis, drove sauske insane, tortured kakashi into a coma, helped akatsuki kill gaara by stopping his rescue attempt by konoha, helped akatsuki be ready for war by doing nothing to stop them at all, betrayed konoha and committed high treason against them, attempted to brainwash and enslave sasuke etc.
what war? there wouldnt have been a war.
danzo would have picked up what itachi failed to do, if itachi refused the mission. as long as they knew in advance uchihas plans they would have crushed the threat. a few hundred uchiha vs tens of thousands of konoha nins isnt a war.
moreover if it was so jsutified to kill the few to save the many how come itachi completely abandoned this later in life? he didnt kill off danzo, root, orochimaru, kabuto and sasuke despite them being evil threats to peace and his village.
meaning hes nothing more than a hypocrite who kills only when it suits him and when the enemy is sleeping and defenceless.
giving sasuke even more power isnt a good thing. in fact it puts the whole planet in danger and gives a psychopath even more powers to use on innocent people.
how do you like that? you try to say hes justified then admit he made the enemy stronger