I'm not saying that, nor do I advocate that. I'm just sick of violent criminals being coddled, and I don't sympathize with people whose first reaction in any kind of altercation is to hit or shove people, and it doesn't grieve me when sometimes these people end up dead in justified self-defense situations. Since I do carry a concealed weapon, I tend to not put myself into situations where I encounter drunks or "nutjobs", and if I did, and I was able to reasonably determine that they weren't interested in killing me, there is a lot I would tolerate, and despite SYG laws I would probably try to retreat as quickly as possible. Let me re-emphasize again that I think the shooting in the OP was unjustified, and he should be in jail.
Carrying a weapon definitely stacks the odds in my favor, assuming that most violent encounters that I'm likely to have may be with unarmed assailants. I make no apologies for that. Once again, I don't go around causing trouble, bullying people around, insulting them, or putting my hands on them. I don't have any training in such evaluation. Perhaps, if like police, it was my business to confront criminals, I should be morally and legally required to employ non-lethal methods as a first resort. In my case, since I'm only ultimately going to be reacting to violent attackers or the threat of such, if I draw my gun it's because I have to. I will employ whatever means I have to de-escalate the situation prior to that, but I'm not going to employ escalating methods of response as a matter of practicality. If I pepper spray the wrong person as opposed to shooting them, it may end up costing me my life.
What's your alternative? To allow yourself to be bludgeoned by drunks and nutjobs, and hope they don't kill or maim you?