No, and your details do not match your question. You cannot blame the Vatican for the choice of religion of residents of Latin American nations. Those people have choices in the religious realm.
If they choose Roman Catholicism, then the Vatican cannot be blamed for any outcome of that choice. Another problem I see with your idea that a specific religion caused specific problems in the Americas is that Italians and many other Europeans made the same decision, but had different outcomes. Look to Peru for a refutation of your thesis.
They had a Japanese/Peruvian president for 10 years, Alberto Fujimori. His presidency was a failure and imploded. He was no certainly no better than the other dictators who gained power south of the US border.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.