STO,
No, you are actually twisting.  How is defending yourself un-Christian?  How is turning a blind eye to your neighbor being attacked,   Christian? Jesus said no greater love exists than for someone to lay down their own life for a friend.  Soldiers on the battlefield have  seen this. There has been more than one case of a  man throwing themselves on a grenade to save his buddies.
If someone is 'physically' attacking me or a loved one, I don't just  'think' they're guilty, I'm witnessing it and yes, I will defend. If someone tells you they won't, they are either lying or are mentally unstable. To allow evil to go unpunished is neither Christian or human. It is, in fact the very definition inhumanity. 

I believe in the law. Christians are to obey the governing authorities as they are God's servants and do not wield  the 'sword'   for nothing. The law, justice, mercy and punishment are  all derived from the same place.