I didnt have time to read all the posts but in a few that I read I think there are a few laws trying to be combined into one. In TN and GA we have a castle doctrine, a stand your ground law, and a preemption law. Basicly castle doctrine means you have the right to protect your castle (dwelling) in GA it extends to your property, Stand your ground is just that you dont have to retreat prior to use of force (I say if you can do it) but the castle doctrine is for your home and stand your ground is from my understanding for out in public. Now the preemption (i think thats the word) basicly means if some one enters your house or your car (for my state) then it is presumed they are there to do you greatly bodily injury and force is authorized.
As for stopping vs killing the threat I am good with me putting 2-3 rounds CoM from my 40 with the xtp hornadys if they break into my house or threaten my or my family's life if they happen to die from it Im sorry for their family that this person thought it a good idea to test me. As for my personal property (my car) If i catch them I will go into the situtation knowing my pistol is on my hip and Yell or try to force them away from my car if they turn to me to "stop me from stopping them" then I see that as a threat on me and you can refer back up.
My car has been stolen from a hotel parking lot in the middle of OK with out my knowing and quite honstly I am still recovering from all the personal information that they got also. I will tell you from first hand it sucks when you work hard to get what you have, and even if you dont have much whats yours is yours and you earned it, for someone else to come by and decide to just take it from you. I am not saying death penalty for the guy who try to steal my car but I will say I will stop him with a less then leathal force unless he turns to me.
"The purpose of war is not to die for your country. The purpose of war is to ensure that the other guy dies for his country." - General Patton