Countries like Japan make it impossible for gun lovers to make a sensible argument. Some of their favorite lines are, "criminals don't obey the law they'll use guns anyways" or "if people want to commit murder they'll just use something else".
Cold hard facts proves that isn't true and not just by Japan. You can argue that it's their culture. You can argue this or that or something else. Doesn't matter. Japan and others are clearly doing several things right and we should learn from that.
We (the usa and some others) keep going through this nonsense of being proven wrong on something and then just doubling down instead of changing. Whether it's gun control, health care, or a long list of other issues. It has to stop.