What's a human to do?

It's really easy to say "screw you" to a rude person. May be in different words, the idea is often the same. "They hurt me. I want to hurt them." The core of it, "Damage was done. It needs to be set right." That we can all agree on, right? Something is broke, it needs fixing. Question is: How does one start to fix when the species is broken? One surrendered life at a time. One little invasion after another. An invasion of good and of grace in the land of sorrow and hate. HE invades our hearts and makes all things new.