Yeah, I mean, obviously guns is a necessary element to the equation. I'm all for finding a practical/realistic way to solve that problem.
Until we figure out a way to remove easy access to guns (which I'm sure will be very soon!), I think it's worth looking at the problem from some other angles too. Almost everyone in this country has easy access to guns, and almost nobody actually commits mass shootings. So I think it's interesting and probably pretty important to figure out what the ones that do have in common. And aside from some obvious ones (depression, isolation, suicidality, social rejection, etc.) one thing is that I think they all get super obsessed with fringe BBSs.
And hell, maybe that's part of the secret sauce for the contemporary boom in these sorts of things. In ye olden days, there were still plenty of guns around, but people who were social outcasts didn't feel emboldened enough to go out and do an unthinkably bold "final act." They moreso just suffered in silence or felt isolated and that was it. Now with fringe BBSs, there's a whole community for these social outcasts to have warped conversations and feel part of this broader, disgruntled community -- which gives them confidence (to do something bold) that their counterparts in the 1980s may not have had. I don't know. Just thinking out loud over here.
But yeah, this isn't to say that "guns" isn't a necessary ingredient here.