I agree with all this, except that you stop them by putting a bullet (or knife or whatever) into a vital organ like the heart or brain, or hit him with multiple bullets, because killing the person is the most likely and immediate way to stop him. If being wounded stops him, then he is no longer a threat. Saying that you are shooting to stop a threat instead of shooting to kill sounds like doublespeak. Even though your purpose is to stop the threat, you stop it by using what is called lethal force (maybe we should call it stopping force). The phrase kill or be killed has been used for a long time, and is not commonly used now because of our politically correct culture.
Huh. I don't think of it as being politically correct at all. I don't shoot to kill--because I couldn't care less if they die or not. That's completely immaterial to what I'm trying to do. (It is called lethal force because of the possibility of what it may do, not because of what the goal is. After all, rape is also defined as lethal force in many states, even though subject death is not what occurs.)
I "shoot to stop" because 1) my goal is to stop them, and 2) it tells me exactly when I've reached my goal.
If I were to say "Shoot to kill" that would be a different goal, and a very different set of criteria for when my goal is met. After all, using my method, if one shot wounded them and they stopped, then I'd stop. Using your goal, if one shot wounded them and they stopped, you'd keep shooting because you have a different goal than I do.
When they attacked me creating a lethal force situation, it means I don't care if they live or die---that's immaterial to the outcome I wish. I want to stay safe, and have them stopped. If stopped is defined as them dying, okay. If "stopped" ends up happening under other circumstances, that's good too.
I'm not acting to kill anyone. If they die, maybe they shouldn't have created a situation in which I'd be shooting at them. If they don't die, great, they stopped doing what was making me shoot at them.
Either way---I see no reason to "shoot to kill." If that's not my goal, and that's not my limit, then it isn't what I'm doing. I'm shooting to stop the attack and keep myself safe. I'll keep shooting until that goal is met. I'll stop when it is met.
If I was shooting to kill, I'd act very differently. (I note also that using a knife is a bad idea if you want to stop someone. Kill, sure, but stopping someone quickly with a knife is really difficult to do. Most knife wounds are not immediately incapacitating, even if they are lethal.)
Looking back at what you said again, this struck me:
killing the person is the most likely and immediate way to stop him
Actually, no. Going by what all the research says, it is neither the most likely nor the most immediate way to stop someone who is attacking.
Sure, once he's dead he'll be stopped. But since killing him takes awhile, and lots of other things may happen before then, I'll stick with acting until he is stopped, instead of acting until he is dead. ("Acting" defined probably as putting rounds into the high torso area in most lethal force situations.)
These days, most people who are shot survive. Granted, not a lot of people aim well...
That kinda turned into an exercise in word-wrangling, but the my main point really hasn't changed: I don't "shoot to kill" because I don't care if the attacker dies or not. I care if they are stopped. Therefore, my process is to shoot to stop the attacker, which gives me a goal that works and a built-in action limiter that keeps
me out of jail.