Simple: 2nd amendment
This right not only protects individuals but, also MAKES ppl polite, cautious, and respectful. These attributes come at a price first but, over time naturally ingrains itself into society.
If everyone carried a gun how much more respectful, to each other, would pp be?
In the early days of this country you had a much more homogenous society. Most were Christian.
You didn't see the mix we have today until they opened the flood gates to shitholes with the 1965 immigration act.
The Koranis had not arrived in numbers, and the Talmudis were keeping a low profile.