These Socialist were following the lead of Dear Leader Benito over in Italy.
Other way around, actually. Mexico’s was the first state revolution of the twentieth century and arguably the longest-lasting. Mexico’s history of revolution had long influenced their European brethren. Benito, himself, was named by his socialist father after the Mexican revolutionary leader, Benito Juarez.
I think you are wrong. Many Catholics died in this conflict. They tried to outlaw the Catholic Church.
Viva Cristo Rey!
The Story, Martyrs, and Lessons of the Cristero War
When the Catholic Faith Was Outlawed
Viva Cristo Rey!For Greater Glory: The True Story of Cristeros (EWTN program on YouTube)
New Trailer for Cristeros Film
The Undercover Priest, Blessed Miguel Augustin Pro
The Martyrdom of Blessed Miguel Pro, S.J.
A Patron Saint for the Falsely Accused [Father Miguel Augustin Pro, S.J.]
Mexican "Cristeros" Martyrs Beatified
Blessed Miguel Pro:Heroic Mexican Martyr["VIVA CRISTO REY!"]
Father Miguel Pro: Heroic Mexican Martyr
Blessed Miguel Pro [last dying words:"Viva El Cristo Rey"("Long Live Christ The King")]