I don't think the suggestion is to shoot to kill over a kaywoodie and some loose tobacco.
Rather, the realization has come to someone that there are individuals "out there" who will do harm, serious harm, over "a kaywoodie and some loose tobacco".
These individuals looked for a victim and found one. They used the advantage of numbers and the element of surprise to achieve their goal. If 'standard resistance" would have been employed by our fellow member (yelling, not letting them have the bag, his wallet, watch, etc.), the likelihood is that they would have employed violence against him. This could have been anything from a simple beating (if a beating can be simple at the fists and boots of 3 thugs) to use of a weapon of their own.
It used to be, in these discussions, that it was difficult to prove to folks who just didn't care to hear it, that thse things were true. No all one has to do is spend an hour browsing youtube and liveleak to come away with dozens of filmed incidents. People literally minding their own business and being violently attacked.
I am fortunate enough to get to work daily with criminals. Many of them violent opportunists. It comes as no surprise to me that things like this happen. It happens in prison. Why would it not happen more "in the world"?
The next situation one might run into is the thugs approaching the member and his wife and/or kids. That is actually a very favorable situation for the thugs. After all, who will risk their wife and kids safety? Only you add in a bit of intoxication, a bit of anger, and a complete lack of consequential thinking (all very common elements, you understand) and pretty soon you have an assault on the man so that the thugs can prove the alpha male bit in front of the woman, maybe a beat down on the woman if she is lucky, or a sexual assault if she is not.
And for those of us who think that, due to size or training, that they are a physical fighting match for 2 or 4 assailants who do this very thing on a common basis.....well.....I can only hope you really are.
For the rest of us mortals who plan on defending "us and ours", the basic use of a defensive firearm is a right that Citizens typically enjoy, and Subjects are typically confused about.
On a very personal note, speaking only for myself, I really do not like those folks who say or imply that when violence comes knocking that they suggest "you do little to nothing other than comply". Mostly because if it happens in both of our company, "your" expectation will suddenly become that "I" will take care of everything for you, and if I am successful, you will then become the biggest advocate for the assailants against me.
IN summation, no I do not think any person should be shot for loose change. But if they plan on beating me down to access that loose change, they should be.
And, if it is true that if you shoot someone is justified self defense and you deal with psychological issues, I can only wonder about the psychological issues you would forever deal with for letting a thug assault a loved one, or even yourself, while you stood back and offered platitudes and pleadings for it to stop, and had nothing else to bring to the game.