Uh...no. A whole generation of men have been told since childhood that they’re brutes, that they’re stupid, that they’re superficial, that all of the world’s ills have been caused by men. They’ve been conditioned to be ashamed of their manhood. In short, they’ve been emasculated.
However, biology overcomes psychology every time. The traditional role of men as provider and protector is now viewed as shameful, sexist and even racist. It should come as no surprise that dominant male behaviors manifest themselves in unforseen and ultimately destructive ways.
I imagine in most instances of "Columbine-like" behavior, you would find a young man who has had women trying to engineeer out of him his "male agression" like it was some kind of disease. Everytime we outlaw dodgeball, we are laying the foundation for trouble down the road. Men are men, and when you devalue that, you reap the whirlwind.