None of those address my points. One being that places like England and Japan are not authoritarian, dictatorships, or tyrants, yet they don't allow guns for most people. And there is Canada, which seems to have found an ideal balance in gun ownership/restriction laws. Places like Brazil and Mexico are violent, essentially more-or-less, because drugs are illegal and the drug cartels are providing for those markets and becoming wealthy, powerful, and very dangerous in the process. And, of course, things like poverty walks hand-in-hand with violence, so, gun control won't fix all the violence in America. But, nevertheless, we can work and make great improvements in reducing the amount of accidental deaths from guns as well as make sure those who shouldn't have a gun at least have to go the extra distance to acquire one. Of course it's not full proof, but there is no excuse or reason for letting people buy a gun without ensuring they are trained to properly use, handle, and store one.
Guns and cars are two things we must take, as a society, far more seriously than what we do.
The overall point is that every country is different, and I just don't believe it's an applicable argument to say that Canada or Britain or Japan have tougher gun laws, which implies that the same results would happen in America if we had tougher gun laws.