Like you and so many of us, “vigilante justice” is unappealing. That said, it is preferable to “perverted justice” the era of which we are entering. I would recommend that you begin preparing yourself to lead your community in not only defending itself but “taking care of social infractions that had been derailed” as well.
Personally, when the SHTF I don’t think I would have any problem with telling someone who survived an encounter with our community, Bible in one hand and hemp rope in the other, “May God forgive you...” Anyone who would try to harm us or take our means of subsistence by force can expect all the mercy they were prepared to show us.
In a day and age where the courts will give 14 year old “kid” is going to get 3 years in prison for 4 beheadings, vigilante justice begins to look very appealing.
The sooner society realizes and understands that there are lots of folks who NEED killing, the better off we’ll be.