Imagine the headlines: "Earth population grows after congress passes law requiring it in 1982." or "Sky blue after Blue Sky Act of 1982"

Both of these would be true, but they there is no cause and effect. I would like to see the crime stats from before the law was enacted. Crime might have been on the decline before and there may have never been domestic violence.

I suspect once this is know it would enhance the argument for gun ownership. But until we do, it does not tell us anything.

Also, are you advocating government force?