The seedy underbelly of Mexico has always been there, that is what the novel, "Under the Volcano" is about.... (movie as well)
https://en.wikipedia.org/wiki/Under_the_Volcano (1947)
![](http://www.worldsultimate.net/wp-content/uploads/2013/06/91nxw4439yL._SL1500_.jpg)
It's just that it is way out in the open now, it's on steroids, in "Under the volcano", Mexican bandits kill the main character at the end. It was basically, the same phenomenon.
In 1910, the population was 15 million plus, in 1920, 14 million plus, they lose a net million over 10 years... there are various factors at play, but that shows a net effect of the Revolutionary years for Mexico's famous revolution.
http://www.populstat.info/Americas/mexicoc.htmIf one could say, as I've heard Mexicans say, per a cartel or other criminal gang, "my brother was kidnapped and we never saw him again", this is horrific stuff and that's where the country is today.