Catholicism

http://www.usatoday.com/story/news/world/2014/11/13/latin-america-less-religious-study/18946703/

In just one generation, Latin America has seen the number of people who identify themselves as Catholic plummet, with more people becoming Protestant or dropping religion altogether, a new report shows.

Why?

The most common answer was people saying they wanted a more personal connection with God.
Christ's sacrifice did away with the role of an intercessor, the role that priests used to play while guiding Israel towards the incarnation. Christ himself became that interceding lamb/sacrifice and so the need for a middle-party becomes less necessary. Relationship with God is intimate and that is non-existant with someone always in the middle like a priest. No matter how much a person may want to cleanse themselves through an institution, it is not the same when doing so with God and through God. God became man. God is personal. God is Father. "And do not call anyone on earth ‘father,’ for you have one Father, and he is in heaven."