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> while the percentage of households with guns has gone down, significantly The civilian gun stock has grown significantly since the 60s [1]. These data, together, seem to imply a large (but declining) number of households with a couple of guns and a few households with a ridiculous number of guns. Of course, the dagger in your argument is that American divorce rates are not extraordinary [2]. Our gun ownership and s…
Similarly, it surely is better to compare the same country over time instead of comparing different countries which differ in many additional respects? If your thesis that the availability of guns causes school shootings is true, you should expect to see school shootings going down in the U.S. as the practical availability of a gun goes down.