I found this very interesting:
Psychologists Joseph Vandello and Jennifer Bosson have coined the term “precarious manhood” to describe a dilemma that only men seem to face.
In a nutshell, they argue that “manhood” – however an individual male’s culture might define it – is a status that must be continually earned. And one’s self-worth is tied to being perceived as a “real man.”
It’s precarious because it can be easily lost – especially if the man fails to measure up to the relentless challenges that life throws at him, be they tests of physical bravery, or competition with other men for respect and status.
Nicolas Henin was a Frenchman who was held hostage by ISIS for ten months. Here’s how he described his young, murderous, Jihadi captors:
They present themselves to the public as superheroes, but away from the camera are a bit pathetic in many ways: street kids drunk on ideology and power. In France we have a saying – stupid and evil. I found them more stupid than evil. That is not to understate the murderous potential of stupidity.
Apparently, a lack of attention from others results in a lack of status, resulting in a lack of access to women. Combined with a young man’s testosterone, it creates a toxic, combustible mix.
Islamic law allows for men to have multiple wives. This contributes to a lack of female access for lower status males and (if you believe this study) a greater inclination for violence.
Of course this doesn’t explain the San Bernardino shooters. But it may explain others and provide another indicator for predicting future violence.