... you do seem to be making hard work of a simple question.
Yup. That's me ... definitely ...
"Stop thinking!" as my wife uses to say ...
Here in Germany "Self Defense" is a specific branch of the MA. There schools for aikidō, MMA, Taekwondo ... , Self Defense, ... .
Self Defense is characterized by preemptive action and "ultimate effectivity": They explicetly teach how to destroy an attacker.
I've been teaching kind of self-protection or assertiveness training for some years in my job. It was based on my aikidō. And it was important to assure, that I don't teach Self Defense. Because the gyu who did the course before had done so and had taught too brutal things to our colleagues.