To quote a post I recently found resonating with me:
"Look, we don’t necessarily hang murderers to deter other people from committing the same offence. We kill them simply because the punishment has to carry the same weight as the offence. The family of the murderer must go through the same anguish and pain that the murder victim’s family went through. The killer has to be stopped from enjoying all the things that come with being alive. When you kill another person, you deprive them of worldly enjoyments like food, sex, conversations, bathing, laughing, crying and therefore it is only befitting that you too get deprived of same and the only way to do so is through the death sentence. If we are going to shy away from punishing wrong-doers on the basis that the punishment won’t stop other people from committing the same offence then we might as well not send anyone to jail because sending people to jail has never stopped other people from committing the same offences."
https://www.sundaystandard.info/iocom-a-retributionist-i-sup...
Some cultures actually did do retribution based executions, they where horrific and very different from lethal injection etc.
No, it would not. That's not the definition of retribution.
The argument was one for the proportionality of death for death, but death wasn’t the only harm. That’s an inherent contradiction in the argument being made. You can’t argue an unequal punishment balances the scales here.