Basically that can work.
NAP = Non-Aggression Principle. Keyword Aggression. Completely willing to defend ourselves AND our property and if they are like me and pushed to that point I'll do my damnedest to end it as quickly and directly as possible.
If someone directed them to come at me I'd consider that person fair game too. Leave me and my family alone and you're totally safe.
the person that made the decsion to target you; yes, that is morally sound