Yeah, I never understand this. By and large, vigilantism is illegal, acting outside of the law and due process. Confusion seems to abound over the difference of being vigilant and being a vigilante.
Self defense as described by law is not vigilantism.
and you are starting to come to the conclusion that I have come to, some people, anti gunners included simply have a totally different world view.
To them, when you shoot an intruder that is Vigilantism. For the sake of society it would be better if you just let whatever is going to happen, happen and let the "good guy" cops stop it..or not than for you to take things into your own hands and defend yourself.