compare the number of people killed
https://en.wikipedia.org/wiki/List_of_rampage_killers:_Schoo...
2. It focuses the conversation on achievable solutions. No country on earth has managed to solve the identification, treatment and care of mental health issues enough that would prevent one slipping through the net. Many, many countries have managed to reduce gun deaths to very low numbers indeed.
2. It focuses the conversation on, what I think is, the actual problem rather than something that is achievable but clearly does not solve the problem.
2. The problem is "being are being murdered with guns in astonishing numbers". You say mental health is the root cause, which may be correct. But the root cause is effectively unsolvable, and other countries show that the _problem_ can be fixed by addressing contributory causes, like the widespread availability of bullets.
If there's one argument I cannot tolerate it's a "for the children" argument. Yes great lets have less children die. How do we do that? Killing sprees in China show that you can kill several children with just knives and gasoline. So after the guns we ban knives, we regulate gasoline, we restrict the press and instill a curfew because "for the children." Better yet, while we're just naming stuff that will make us feel better, why not a TSA-like agency for all public places, a Patriot Act to protect us from killing-spree and more warrant-less wiretapping because "for the children." Pedofiles on Facebook; regulate the Internet "because for the children." Can we please find a solution that does not strip freedoms from the sane and law-abiding among us?
It won't solve the problem because we are not other countries. I don't say this out of hubris. Without addressing things like the gun-culture we have here or the irrational fear of crimes we have here people will find a way to procure firearms. I'm pretty sure in 10 years 3D-printing will have advanced enough for us to make upper-receivers. What then? Do we regulate computers "for the children?"
And, yes, addressing the gun culture will have to be a component of this. But violent cultures can be changed. The US is a past master at it -- look at the post-WWII reconstruction it orchestrated in Japan.
[0] www.census.gov/compendia/statab/2012/tables/12s1103.pdf
Not sure where you get the idea that the cost of limiting firearms is low or that the cost of limiting cars is high. Mass transportation, tele-communication etc. seem like viable solutions and because "for the children."
> That's why we should stop at firearms.
That's why we should stop giving our rights and freedoms away.
Reduce the supply of ammunition (especially the kind of ammunition used in assault weapons), and you will reduce the number of mass murders, by a measurable amount.
(And yes, I agree that the way the US and most Western countries treat their mentally ill is the major issue.)