Why are Mormons the biggest in south America?

Answer 1

The Church of Jesus Christ of Latter-day Saints (the 'Mormon' church) tends to be more popular in poorer countries than in rich countries. The reasons vary, but most assume that it is either because the Gospel of Jesus Christ as taught by the Church gives the people hope, they are more humble and willing to accept it, and because the Church does much to help the poor and needy. Another reason some Mormons believe is because the native Latin American and Native American people are decendants of the people in the Book of Mormon, which promises that they will receive the church in the last days.

Answer 2

I don't know that I would say that Mormonism is the biggest in South America. Catholicism is by far the largest religion in South America, and there are twice as many Mormons in the US than all of South America combined.

Mormonism is growing quickly in South America, though, and baptisms there are among the highest in the Church. This could be due to many factors. The people there tend to be more humble and religiously minded, making them more open to hearing the message of the missionaries. In general, the culture is more friendly and people are more apt to listen to strangers and invite them into their homes. The allure of an American religion might appeal to others. Some also join because the Church will provide financial assistance.