Did you read the text in those links?
So, it appears that we are living in one of the safest times in one of the safest countries in the world.
https://www.russellwebster.com/murder-through-the-ages-and-across-the-world
Lead increases crime, but does not explain the majority of the fall in crime observed in some countries in the 20th century. Additional explanations are needed.
https://www.sciencedirect.com/science/article/pii/S0166046222000667
Define “civilized country”?
In the US murder rate was higher throughout the 1980s and much of the 1990s.
https://www.statista.com/statistics/187592/death-rate-from-homicide-in-the-us-since-1950/
https://www.infoplease.com/us/crime/homicide-rate-1950-2014
https://jeffreybutts.net/2002/03/28/risefall/
European murder rates are also down from their 20th century peaks. https://ourworldindata.org/data-insights/the-rise-and-fall-of-homicides-in-europe
They might want American made, they just can’t afford it.