I want to believe this and it may be true. But my issue with that is how that works similarly to an arms race. A faction, in this case probably made of moderates and redneck hippies, would start to catch up with the gun nut right and send our ownership levels way up. That would definitely increase the number of gun homicides and suicides (even if people buy the idea that "legal" guns don't increase murders, legal guns increase "illegal" guns, which does increase murders), which would definitely increase political pressure, which should lead to more defensive propaganda and gun buying (as opposed to the status quo, where people on average have been rejecting gun ownership in response to the rising deaths and the propaganda). This will continue until an equilibrium is found, at which point increased gun ownership will not significantly increase the gun homicide/suicide rate. The only thing that could stop that is if the moderates and redneck hippies change their minds again.
At that point, political division could very well increase. I say that because I think singing Kumbaya around the fire with AKs is not really a thing; it's not going to make us like each other. Political division leads to more gun ownership and then things could get really interesting. I just don't see enough space for upside here, it all seems neutral-to-downside if we join the gun nut right in their bad habit of buying guns to make themselves feel good.
Regardless, in the meantime my guns are where I need them, locked up.