A couple of points, if I may.
Constitutional arguments are pointless. The fact remains that firearm ownership in the U.S. is legal. If it were not so, federal, state and local governments would have collected them a hundred years ago.
My thoughts boil down to this; if you don't like firearms (for whatever reason), don't own one. I won't insist that you do, if you mind your own business and stop telling me what I can and cannot own. I don't complain about your gas-hog, polluting SUV and I have no right to tell what to buy or own. You see, in America people can have what they want, they're not limited to what someone or some government determines that they need. If that were the case, you might be required to trade in that Expedition for a Focus, or that Durango for a Neon as they certainly will meet your basic need.
Indeed, there is nothing more intrusive than the self-appointed, self-righteous who cannot mind their own business. My view on this is simple, keep your nose out of my business, and I'll let you keep your nose. Simple, isn't it?
My regards,
Widewing