doesn’t make it right to murder people just because you felt threatened by them
Totally depends on the threat. If the threat is real and mortal, I'd say it sure does give one the right to defend themselves in a way that eliminates the threat. On the other hand, a vague feeling of being threatened does not give one the right to harm others. If it's not your life or something critical to your life being threatened a lesser response is probably more appropriate. I'm not saying shoot someone for stealing your Amazon package. Like every other situation, there is nuance.