I also tend to disagree with the idea that giving citizens free access to guns - to the point that it is easier to buy than OTC medecine.
I used to travel the world in my prior job, and with my passion being antique firearms (old west specifically) the conversation would usually come up at dinner, over beers etc. It ALWAYS surprised me how the rest of the world sees the USA as this shoot 'em up freewheeling do what you want place. It is not. There are 12 conditions you must meet federally to purchase a firearm, plus additional at the state level. For example, any violent act at Misdemeanor level or above precludes you from owning a firearm, FOREVER. Any Felony at all precludes you forever(even if a non violent white collar crime like tax fraud). In my state you not only have a federal background check but a state level one as well. As for private sales, each state has reqts but generally the seller is legally obligated to verify the buyer can legally own the firearm(ie legal age, and same conditions as fed reqts). MOST people don't know this but it is true. In my state if you sell to someone you know is violent, you have liability if he uses that firearm in a crime. This has been true for decades.
Criminals, of course, are outside the law, and care not about civilized rules. They will get what they want if they try hard enough. Laws really only to keep honest people honest, and punish those who fail.
At last count there were over 20,000 gun laws in the USA. Laws don't work to prevent determined criminals.
Anyway, the reality is...
FACT: USA Gun violence is down 50% in last 30 yrs(general violence as well).
FACT: USA School shootings are down 75% in last 30 yrs(again, general violence as well).
FACT: USA Gun ownership has doubled in that same timeframe.
What has changed to make things sound worse? Media hype of every little sniff related to firearms.
24hrs a day hype on things like gun violence. And its not evenly portrayed as all media is now politically aligned. No longer are there sources of unbiased news. The division in political parties is widening and the media has taken sides, largely liberal as liberal causes are more interesting to read about, thereby generating viewership and sales. Conservative views are quite boring. In fact a study was done that shows that years ago the difference between liberals and conservative ideals were only 16%, today it is almost 40%. I believe, in large part due to the media eye intruding in all things, and the microphone in the face mandates you take a firm position. You can't be neutral in front of the media. They will push til you take a position, or else you're vilified for not taking a stand.
I'll say it again, being able to defend against a threat helps prevent the threat. Time honored human nature tradition of peace through superior firepower.
In both small and large scale, if human nature changes from inherent warring I'll change my mind. If you look at the history of the world, only 50yrs of the last 2000 were peaceful. Otherwise, war. That's who we are folks. And the VAST majority of non natural deaths in the 20th century came from regimes who disarmed their citizens.