Just look at the Amish and Mennonites, and you will see people who are happy, subsist, and even prosper, by leading a life that requires little to no modern ameneties.
Not remotely comparable - an Amish need never worry about a warlord coming to steal his crops or his livestock or his daughters because the full might of the US govt protects his community.
Actually there are Mennonite communities in Mexico and some are affected by the drug cartels, particularly around Nuevo Ideal, Durango.