What do you call it, then? Plutarco Calles was raised by an uncle who was a fanatical atheist who hated Catholics and Catholicism. When Calles became President of Mexico, he effectively made Catholicism illegal, and received awards from Freemasons for doing so.. Priests had to go underground; some were arrested and executed. Since you didn't know about any of that, I'd say maybe you should consider the possibility that there is a little ignorance of history in play.
Discuss the issues all you want, but do not make it personal.
Mexico was almost 100% catholic and almost everyone involved was Catholic, and as far as intervention, which was the subject. If you want to explain which countries were supposed to send their Armys to Mexico, and why, then do so, no one is holding you back from giving your opinion on that.
If Mexico needed to be invaded, then perhaps the many Catholic nations south of it could have invaded, or perhaps the Catholic nations of Spain, or France could have gone to help.
Your post is spot-on. I wish more people knew about that period of history, how the Marxists are repeating the same thing here, and the part our very own gov (Woodrow Wilson) played in assisting the Marxist Masons in slaughtering faithful Catholics.