What? You sure it doesn't come from the steady erosion of gun rights? Calls from all sorts of shifty politicians to restrict things, even when it makes no sense. Like after the LV shooting, when there is still no explanation available, just lies, yet people still use it to justify taking away more rights?
I used to think the NRA was nuts, then I saw that there's no negotiating with the other side. Gun owners only stand to lose, and have consistently had their rights destroyed. If they didn't have a persecution complex, they wouldn't be paying attention.