But I can't understand why no one talks about how to secure the society.
This is a valid cross-cultural question, Tera, and deserves a decent answer. Let's hope that I can give one that somehow evades my own cultural biases.
The USA is a relatively young country, though by far not the youngest. As a culture ages, some of its formative pressures become lost to history. Only the more important factors remain part of the culture. This is just human nature. We remember what is important and we tend to forget what is not so important. I'm sure that older cultures do not always remember why they chose one direction over another in every part of their history. Here is a rhetorical question for you... when did your people stop carrying swords or big knives? Do you know when - and why?
For us, the initial colonists to the USA from Europe needed their guns to survive by hunting because hunter-gatherer societies need less infrastructure than agrarian societies. In the earliest days, we had little or no infrastructure. So guns (and axes) were necessary during our earliest days. The infrastructure for agrarian societies adds the requirement to be able to protect the farm from predators. It would only take a few wolves to decimate your sheep or cattle. It would only take a few bison or deer or wild hogs to decimate your corn crop. We don't even need to bring in protection from marauding native Americans. Even without the human predators, guns were still necessary. As communities grew to villages, towns, and eventually cities, many people still needed their guns because they were guards against marauders of all kinds, this time including humans.
However, as the colonies progressed, the USA came to a feeling of being oppressed, which led to the Revolutionary War. There, those who had guns became part of the militia. Anyone who had a gun and knew how to use it was forced to take sides. I make no claims of exclusivity, because I'm sure the colonists were not saints, but a number of British atrocities brought about by overzealous officers - or those trying to set an example - led to strong emotions among those citizen-soldiers. It is a dramatization and not to be considered widespread, but the behavior depicted for Colonel Tavington in the movie
The Patriot was not unknown.
Here is where the heritage became central to your question. After the war but before the U.S. Constitution was finalized, the colonies debated with much anger and much fervor. There was a vow that was the equivalent of "Never again will we be unarmed in the face of aggression." (Paraphrasing, you understand, 'cause I wasn't there.) In order to get some of the colonies to agree to join the nation, we had to draft the first ten amendments to the constitution, what we now call the "Bill of Rights." These amendments provided added rules and enumerated rights that eventually persuaded the stragglers to join the USA.
And now, the point of historical perspective: That happened
less than 250 years ago. These events occured from 1776 to 1789, which means from 2020 is only 244 years back. That is not long enough for the stories to have faded from our culture. When I was in grade school, the USA had not yet celebrated its Bicentennial. We still heard stories about the rugged explorers, hunters, and trappers of our pioneering days. Our most recent states to join the union in the confines of the continental USA were New Mexico and Arizona in 1912, Oklahoma was 1907. Utah was 1896. When we talk of the "Wild West" we are talking about a time when current states were still territories with less law enforcement and military protection than we have now. Guns were still needed to tame those lands due to four-legged predators and two-legged varmints (who also carried guns). We are now talking about times within the familial memories of people who passed down stories from their living grandparents!
During all that time, the gun was the tool of taming a violent environment. Gun ownership in the USA has indeed diminished, but there are those who have that ancestral heritage that showed that the gun was the tool of personal protection. With us, that is still an echo reverberating through our families. Perhaps we are moving towards a time when guns will not be required. But thanks to my genealogy research, I can tell you of my great-great-grandparents who fought in the Civil War (on either side) and can tell you where some of my Confederate ancestors are buried in mass grave sites set aside for Civil War prisoners of war. The Confederacy lost that one - and probably
should have lost - but it reinforced the idea that we needed guns in case the current government became oppressive enough to cause a true revolt.
That was one of the tremendous fears of our Founding Fathers - that the government of the USA would become equally as tyrannical as the remote governance of King George III had been. I will leave it to you to consider whether the current situation in the USA is one where you could successfully persuade anyone that we need to turn in our guns and trust the government. Given that factor in our culture, do you think we would?
I don't know if you are familiar with the work of graphic novelist Alan Moore or the movie
V for Vendetta, but there is a significant line that has a lot of believers. "People should not fear their government; a government should fear its people." In the USA, we believe that our government derives its power from our continued permission as evidenced by our voting. We try to use the voting booth as a peaceful way to to assure that they remember that fact. You can use that general idea to see why Donald Trump got elected. With Hillary, a lot of us (including me) felt that she was "more of the same" and we had come to distrust that "sameness." The election of Donald Trump was essentially a "revolution in a ballot box."
Tera, I hope this helps you to understand better why we do at least some of what we do and why we remain adamant about having guns.