If we, as a society, want to have people leap into the fray, and I would like that, then we need to do the things that make it a rational choice to do so instead of one that might very well bring ruin, imprisonment, injury, or death.
But we do the opposite, then act stunned when people conform to the reality we create. Let’s look at the logistics. The people pummeling others are usually pretty big, and they’re criminals for whom violence is a way of life. Most normal people are not streetfighters, and taking on the criminals is extremely dangerous and can easily get you hurt or killed. Now, a civilized society would want to encourage people to intervene, and that means not interfering with normal citizens’ right to bear arms. Many states do not, but the Ninth Circuit just informed us that the right to “bear” arms doesn’t actually mean you have a right to bear arms. So, in many places, society has deprived you of the ability to intervene with some measure of safety and effectiveness.
But if you do intervene, your trouble just begins. Even if you are in the right does not mean an intervention will go your way. If you are in the wrong jurisdiction, with one of those leftist-bought district attorneys, then you run the risk of being prosecuted even if you did everything right. Take it from a lawyer – innocent people get shafted all the time by the system, especially when the system wants them shafted. Maybe you eventually get acquitted, after a couple years of hell, some time in jail, and financial ruin – congratulations!