It can also cause aggression.
Oxytocin, huh. Well, logically neurohormones are the reason asking for tolerance for generations has caused backlash.
People aggressing on behalf of others has been widely researched, but Buffone and Poulin say “the idea that empathy can drive aggression absent of provocation or injustice is quite novel.”
Aggressive activists. Nope, never heard of it.
Fun fact: many conditions characterized by lack of empathy e.g. autism, narcissism/histrionic or borderline, will claim to be more empathetic than other people. They have higher personal emotionality and instability, then assume this makes them superior, because obviously, their emotions > everyone else (what you might recognize as low empathy mindset).
You can’t justify violence. No, not even against baby Hitler. You’re still an abuser. It goes to show how violent they are that they’d rather slaughter a baby than teach it (nurture hypothesis) or prevent its conception.