Let’s try again.
As others stated, revenge against another Jew is forbidden, one has to know and realize the one really behind the slap, and as oyyoyyoy (veyyeyyey) stated, all Jews have one shoresh and the right hand will not fight the left..
However, there’s a real concept of nekamah, slain persons’ souls have no true rest until exact revenge is meted out against his assailant. That is one reason the Torah metes our the death penalty for murders, as a solace for the victim (and family).
We are not a religion of instant pardons, absolution, poo poo etc. (never been to there..). There’s an exactitude up there not paralleled elsewhere.. ?? ????? ???”? ????? ..
We truly await the day to see the true revenge of HaShem..