I do desperately wish that there was a movement amongst firearms owners similar to the "I am a Mormon" tv ads that were on a couple years ago.
The Mormon ads showed all sorts of different types of people living all kinds of different lifestyles, in an attempt to de-mystify what type of people are Mormon.
There is this belief amongst non-firearm owners that owning "assault weapons", multiple firearms (any more than two seems to be called an 'arsenal'), or lots of ammo, is the earmark of sociopaths or otherwise total weirdos. We all know that's not true -- that firearm owners come in all shapes, sizes, genders, socioeconomic backgrounds, races, and political leanings. That owning an AR or AK isn't deviant behavior. That having several firearms doesn't mean you are a doomsday prepper. That having lots of ammo doesn't mean that you're just preparing to shoot up a school. It's actually surprisingly mainstream American behavior (outside of urban areas, that is) to do any or all of those.
I'd like to see all different kinds of "normal" Americans publicly showing that they own multiple firearms, especially the "evil" types, and stocks of ammunition. There needs to be an antidote to the narrative that antis are spinning right now that says the NRA is solely responsible for the ability to own AKs and ARs and normal-capacity mags, and that "normal" Americans don't own, need, or want any of this stuff "that is only designed to kill a lot of people".