Cassette home taping and even Internet piracy did not end the entertainment industries, who gave the consumers not only the entertainment products, but the tech to copy and redistribute them. With 3d printing, it is not just weapons, but anything from a factory that can be made locally. From printing houses to best building codes, to whatever trend becomes the newest mass production collectible, the means of production no longer controlled by the few exploiting the many for the dwindling middle class. Religion does not teach people to get along fairly with each other, while the literary genre if science fiction does teach that humans always lack the wisdom to leverage technology. The perpetual haves vs have nots. Education and poverty are problems of distribution.