Even in self defense, to me, killing someone is last resort.
I get robbed at gunpoint: i give them my wallet.
I get attacked for reasons beyond my control (gaybashing for example): i'd try to run, as it's usually a group of people. I'd cry for help. I'd try to inflict enough pain to get away.
I'm at war. I don't want to be at war. I also noticed people larping here, like they want to be in a war. To me that's crazy.
I get wormholed back to baby hitler: Wouldn't kill him. Would encourage him often to persue arts.
More specific to this case: it's not self defense if you stalk a person then kill them, in my opinion.
That's incel turned rapist/murderer thinking, in my opinion.