Step 1: Get Catholics to have a conversion experience in a Protestant setting.
Most Fundamentalist, Evangelical, and charismatic Protestant churches have dynamic youth programs, vibrant Wednesday and Sunday evening services, and friendly small-group bible studies. In addition, they host special crusades, seminars and concerts. At the invitation of a Protestant friend, a Catholic may begin attending one or more of these events while still going to Sunday Mass at his local parish.
Most Protestant services proclaim a simple gospel: repent from sin and follow Christ in faith. They stress the importance of a personal relationship with Jesus and the reward of eternal life. Most of the Catholics who attend these services are not accustomed to hearing such direct challenges to abandon sin and follow Christ. As a result, many Catholics experience a genuine conversion.
Protestants should be commended for their zeal in promoting conversions. Catholic leaders need to multiply the opportunities for their people to have such conversions in Catholic settings. The reason is simple. About five out of ten people adopt the beliefs of the denomination where they have their conversion. This percentage is even higher for those who had profound conversions or charismatic experiences that were provided by Protestants. (Believe me, I know; I was a graduate of an Assembly of God college and a youth minister in two charismatic churches.)
He goes on to explain a couple of other most interesting things. Then concludes:
Over the past three decades, thousands of Catholics have left the Church for Protestant pastures. The largest church in America is the Catholic Church; the second largest group of Christians in America is former-Catholics. The Catholic men’s movement has a solemn obligation to help men discover the biblical and historical roots of their Catholic faith. Then, rather than leaving, they will become instruments to help others discover the treasures of Catholicism.
Remember that a man who leaves the Church will often take his family with him — for generations. It took my family four hundred years — 10 generations — to come back to the Church after a generation of my ancestors in Norway, England, Germany and Scotland decided to leave the Catholic Church.
As one whose family has made the round-trip back to Catholicism, let me extend a personal plea to Catholic men, especially the leaders of various Catholic men’s groups: don’t put untrained Catholics in a Protestant setting. They might gain a short-term religious experience, but they take the long-term risk of losing their faith. It would be highly irresponsible to expose them to Protestantism before they are fully exposed to Catholicism.