re: "fighting words" etc., as the statute quoted pointed out there is almost always an exception for someone who makes a good faith effort to disengage once lethal violence becomes imminent. I'm still not aware of any case where someone said some bad words and, when his "victim" pulled a gun/knife, it was found illegal for him to defend himself.
re: line in the sand/"BE A MAN" ... Folks, come on. We're better than that. If you personally think that it's your job to play Robin Hood to every damsel in distress, or you believe that your only responsibility in life is to get home to your fridge full of Budweiser, say so, explain why, and move on. Let's not get so stupid as to question one another's penis size over these things.
There was a recent case of an ATF agent shot and killed by an off duty police officer in NY. The ATF agent was present during an armed robbery of a convenience store and tried to intercede as the robber exited the store. In the process, he ended up rolling around on the ground, gun out, with the criminal. The off duty cop saw them wrestling over the gun and tried to pull the guy on top (ATF agent) off the guy on bottom. Unfortunately, off duty cop had his snubbie in his hand and his finger on the trigger, and as he grabbed at the guy on top he had a sympathetic muscle contraction, firing a round basically from armpit to armpit, killing the ATF agent.
The bad guy, prior to wrestling for the ATF agent's gun, was armed with an airsoft pistol or something like that.
The ATF agent's wife and daughter were inside the convenience store and saw the whole thing.
I think we can all understand the impulse to stop the criminal. I think we can also all understand that given a choice, neither that widow nor her now fatherless daughter probably think it was worth it.
The point is that sometimes good guys doing good things pay a price. Whether you are willing to pay that price or not is a personal decision, and not something that makes you better or worse, more or less "manly," than others. For every person who says it makes him braver, there's someone else who'll say it just makes him more of a glory hound. Etc.
So express your own feelings and expectations of yourself without pointing fingers at everyone else. Thank you.