I know that was directed to someone else, but this is something I struggle with. I don't think God expects us to lay down and take a beating. I can't see this as a "turn the other cheek" kind of moment. Maybe I'm wrong. Most of the scriptures about repaying evil with good is in reference to smaller things...like giving someone your cloak, turning the other cheek, etc. These were geared towards legal proceedings and insults. Not true physical harm that could even turn deadly.
I guess I'm saying I would probably go Old Testament on their asses. I haven't forgotten I serve a God that didn't let a single enemy live in circumstances and raised up some of the greatest warriors of all time. And not just Samson, David, etc.