The real root of all this violence is helplessness. More and more people are losing their jobs to automation and outsourced slave labor in other countries. In order to compete with this, low-level workers have to take less pay until they are eventually phased out. There is a serious lack of opportunity available, all around the world.

The companies that profit the most refuse to give back to the communities that they are destroying. Through lobbyists and bribes, these corporations use politicians as puppets and answer to no one as they continue to exploit the system. Corporations even legally count as people to take the real heat off of the actual individuals perpetrating these crimes against humanity.

Metaphorically, all the problems are just getting swept under the rug. The "solutions" to the problems (like banning weapons) is yet another way to just try to sweep it under the rug. These random acts of violence are a sign that the dilemmas of society can no longer be contained in such an ineffective and greedy manner.