First off, don't cite me Wikipedia for a principled, conceptual orientation to a matter of policy, much less for reliable data bearing on the matter. Second, "shall not be infringed," in the context I have surveyed, contemplatees infringement. Machine guns, for example? Assault weapons? Concealed carry? And so on and on. Finally, your suggestion to arm the entire populace for safety's sake is patentlyy absurd and doesn't warrant a response.