Instead of arming civilians for vigilantism pressure should be put on the government to deal with the root causes of criminal behaviour.
As far as I was aware the legal punishment for theft wasn't the death penalty, but here you are saying a citizen dealing out that punishment without a judge or jury isn't only acceptable but should be actively encouraged.
You're just trying to deflect from my statement:
The criminal punishment for theft is not the death penalty, and you are actively encouraging vigilantism issuing death sentences without a judge or jury.