An eye for an eye shouldn't be the new normal.
Aaron Sorkin, in the various iterations of his subconscious, has asked many, many times about the virtue of the proportional response. How do we expect the skirmish, the battle, the war to end if we only fight back with an equivalent effort? I have a different question: When did baseball players decide that violence is the best retaliation?
Buster Olney called it the unwritten rule: If your pitcher hits my guy in the top of the inning, my pitcher's going to hit your guy in the bottom of the inning.