We've had this discussion but I think you're in denial. Plenty of cops will be more than happy to enforce it. The same ones who stand by and watch antifa thugs beat innocent people. Portland, Berkeley, DC, NYC, Baltimore, Boston, Chicago, Atlanta? And plenty of smaller places. They might not go door to door looking for guns, but if you ever had to use it, what do you do then? Bury it in the backyard? The cops in DC used to have an informal policy back before the Heller decision when handgun ownership was illegal. If a homeowner used a handgun in legitimate self defense, they would look the other way on the possession. But that's a hell of a way to live. Sword always hanging over your neck.