Re: Revenge and justice are very closely related. You'll learn that as you get older.
If the sense of revenge didn't exist there would be no need for justice since no one would care about crime being committed or being a victim of, So in a sense the state does exact revenge vicariously though not necessarily satisfactorily all the time. That is the "feeble" point you apparently didn't understand. Also if you or one you love had been a victim of crime you wouldn't be so quick to dish up the smug "revenge fantasy" putdown.