You have stated as fact that nobody ever successfully uses a firearm to prevent a violent attack, and that a knife is more likely to work for this purpose.
Incorrect. I have stated as fact that the fear of individuals possibly carrying firearms and defending themselves is not a significant factor in the criminal mind. The object intent of a criminal is to overcome a victim, not to have a Mexican stand-off; they don't announce themselves. If you're not waliking around holding a large firearm leveled at whoever approaches you, you're a target; you'll have to draw your firearm, and a good grappler can control your arm so you can't safely point it away from yourself and at them.
Knives happen to have sharp edges, so trying to take one away is less of a winning proposition.
You seem to be arguing that the average person is a sociopath who is willing to just watch others be hurt.
One mechanism is called the Bystander Effect; there are several others. We actively discourage vigilantism.
There is solid research estimating that firearms are used in the USA about two million times each year to prevent a violent crime. Most of these "defensive gun uses" do not involve anyone being killed or even anyone firing the gun; the defender deterred the assailant just by having a gun.
At which point you bring up a whole lot of inconsistent research that manage to conclude something with a 312.5% margin of error and with extremely poor experimental design, and from a biased source to boot.
Did you know global warming is bunk, too? Exxon-Mobil published a study. There is no pollution from coal at all.
I don't blame the victims the way you seem to
You're a retard.
I explained the role of society in deterrence, and you claim victim-blaming. I specifically said the victim has NO POWER over the situation, and it's the fault of everyone else in the world.
Sally got raped. Tim, Bob, George, Amanda, Mark, Joseph, and Bill all stood by and did nothing. You claim I'm blaming Sally for getting raped by complaining that Tim, Bob, George, Amanda, Mark, Joseph, and Bill all stood by and did nothing. Are Tim, Bob, George, Amanda, Mark, Joseph, and Bill the victim?
You extended too far with your bullshit art. You got burned.