"Why do you care what I, or, someone else owns?"
cause we got too much firepower in the hands of too many people?
OK ed, so lets start with you. Petition your governor and senators, insisting you want to give up all of your second ammendment rights. You will not be allowed to own any firearms or ammunition, and will allow your home, shop (where is that shop, anyway?) vehicles and person to be strip searched at any time, at the whim of your government.
You will win the moral victory, ed, and can post the "gun free zone" signs on any and all property you own. In fact, lets require people who give up the right to post that sign, ed, a big blaze orange one, on their homes, vehicles, and workplace.
Hey, as the leftys chant, if it saves even one shooting, it is a good start, right? Even if the one shooting prevented is your own, no doubt saving you from shooting yourself in the foot.
If you really want an answer from the real world on your dumbassed question, ed, google crime rates for England and Australia, before and after the sweeping firearms laws went into place.
Best,
Ted