I personally believe that US citizens are unable to understand how dumb their attitude to weapons is, but
+ mass shootings wouldn't be much impacted by changes in the policy
+ mass shooting don't seem to have a strong correlation with firearm policy
However...
>firearms killings _are_ a pattern, if I recall correctly they are something between 5 and 10 times more frequent in US than other first wold countries. I personally believe that US citizens are unable to understand how dumb their attitude to weapons is,
You can't compare crime rates without controlling for other differences. Most other first world countries are much more ethnically homogenous than the U.S.
And they don't suffer from the cultural problems caused by the fairly recent institutional persecution of an entire class of people.
It's not very PC to talk about, and I think that the high incidence of crime amongst black Americans is directly caused by the decades of persecution they suffered which causes them to occupy a lower socio-economic position on average than whites, not any inherent racial differences.
But whatever the reason, whites and blacks both have similar access to guns and similar gun ownership rates, yet if you only count white americans, you'll find a fairly similar gun crime rate to the rest of the first World, so clearly, easy access to guns isn't the problem.
The closest country I can think of to our situation is South Africa (Rights recently restored to an historical lower class. Though it's still not a great comparison because of their relatively lower GDP per capital, and different demographics). Their gun violence rate is about 5 times that of the US.
Consider this data[0], in the context of Europe: UK[1] has likely more racial diversity than Denmark and Latvia, but firearm homicides/100k people is lower (0.1 vs 0.3 and 0.2, US has 3.0 ).
I imagine that "black poor/uneducated/mistreated people are responsible for most killings", is actually the same as saying "poor/uneducated/mistreated people are responsible for most killing", it just so happens that (at this point in time) in the US this poor are black, while in other countries the social segregation goes around different lines (e.g. gipsies in eastern europe).
Decades of persecution may or may not matter, but those also seem a minor issue, as most countries have had high criminality among poor/uneducated/mistreated people before (e.g. italian immigrants in US beginning of 1900, "wops") even without a history of repression.
[0] http://www.unodc.org/unodc/en/data-and-analysis/homicide.htm... I'm reading the 2010 or most recent column [1] data for england+wales, not northern ireland, not sure why not scotland
Remember that heat wave/power outage combination we had on the east cost (USA); at least 46 fatalities [1]
[1]http://usnews.msnbc.msn.com/_news/2012/07/06/12597271-dozens...