

No, I think systemic issues need to be addressed of course. But I think in America, as someone who has worked in mental health for decades, the use of “mental health” in the wake of large scale violence is exclusively a scapegoat because there has almost never been meaningful action behind it. Overwhelmingly in almost (if not) all states since 2008 mental health programs have seen massive budgetary cuts year after year after year.
And this begets the point that “mental health” is a weasel word for treating systemic issues. Frankly even if you increased the budgets of Medicaid and community mental health programs 10 fold I don’t believe mass shootings would be impacted much in terms of rate. The systemic issues that create these conditions - wealth inequality, racism, quality education access, quality healthcare access, etc would essentially all remain and take generations to resolve even if you forced fixes tonight. The rot goes deep. Almost any therapist who works in community mental health programs will tell you that most of their clientele suffer more from lack of resources than mental health disorders

I’m torn on the idea of arming leftists in the current climate. I don’t disagree with you there. I live in a somewhat rural area that is heavy Trump and the right wingers are heavily armed. I don’t blame a trans person for arming themselves to defend themselves in an area like this, and my post history reflects as much.
That said there is a difference between arming yourself and actively contributing to increasing the amount of arms in the world. And what made it interesting is you claimed this is an ethical and moral issue. If your friend worked to only arm leftists that would be an interesting take. I doubt this is the case though. I am assuming they are like any capitalist based on your first line - anyone’s money is good enough.
To answer your question as others have said the hammer has a utilitarian purpose, as do knives, as does dynamite. With the exception of something like skeet shooting guns sole purpose is to rob the consciousness of a living being. I do not believe that the sport outweighs the risk. There are far less dangerous ways to hunt, we’ve banned things like lawn darts for less when the danger outweighs the utility. America just has a raging hard on for guns because of military fetishism