Here in Europe we've got 2000+ years of culture and history, something that the Yanks are woefully lacking in. Instead of putting their heads together and taking time to consider this concept, they've taken it upon themselves to consume immense amounts of McDonalds, Coke, and Marlboro products, whilst at the same time loudly proclaiming that they're the most free people on the planet.
In school they are taught a whitewashed version of history in which there is a CLEAR WINNER on one side and a CLEAR LOSER on the other. Nuance and detail are discarded in favour of picking a side and staying with it like they might do with a sports team.
We aren't crazy about guns as we have no need to be.
Some of us like guns because they're fun to shoot but no-one is crazy about them.
History is important, but I think in this case more important is the current cultural production.
Basically, 90% of all action movies produced in the US end with some sort of physical/armed confrontation between the hero and the antagonist. It is a cultural pattern repeated over and over and over, that certainly has an effect in shaping thoughts and decisions.
I have a curious anecdote. I watched the French movie Irreversible with a bunch of American friends. For those who are not familiar with it, it flows backward from its conclusion to its beginning. So the first scene depicts a man killing another in revenge, and then the movies flows backwards showing the reasons for which the man seemed revenge.
Problem is, the killed is not the right one, but a friend of his. The guy just gets it wrong.
Out of 8 of my friends, 7 did not catch this, and even after being told they resisted the idea saying that
it would not make sense! why would they make it so he does not have his revenge?. The eighth person works in movies and has consequently a very keen eye for scripts, and would never lose something like this.
I thought it was a very interesting case of how people internalize the narrative structures stereotypical of the cultural production they are most accustomed to, to the point of renegotiating what they have just seen to make it fit those.