I didn't read the first part, but itachi is not a pacifist. Never had been.

@Doodlewuzhere91 yes, instead! Someone has stopped a Civil War and surely a future war between the other villages is a Pacifist. Of course Itachi a worse pacifist than Kuma, but Itachi has always been a pacifist seen that he hated wars.

To be against conflict does not make one a pacifist. A soldier can hate war, and fight to end war, that does not make him a pacifist. Itachi is such a soldier. To be a pacifist means one must have an aversion to all forms of violence. Kuma exhibits this quality, Itachi most certainly does not.

Neither of them are, the pacifistas definitely arent

Pacifista were evidently meant to be, although something (we don't yet know what) changed their purpose.

I don’t think they were meant to be because they were designed for combat

Recent manga chapters suggest otherwise. I'll refrain from spoiling, though.

@Doodlewuzhere91 A Pacifist can also uses the violence to stop a big threat to Peace

Not really, no. A pacifist would only engage in violence if they or somebody else were facing imminent harm, and all peaceful options have been exhausted. Even in that case, many pacifists may choose not to even fight, preffering harm on themselves over inflicting harm on others. What you are describing is the exact opposite of pacifism, even if it is for a supposedly good cause.

@Doodlewuzhere91 Nope, Pacifists are not equals! They are pacifists who can uses violence to stop other violence for good cause and stop a world war.