Americans make up only six percent of the Catholic Church worldwide
• Christian Fundamentalism
The places where Christianity is spreading and mutating are also places where the population levels are rising quickly—and, if Jenkins's predictions hold true—will continue to rise throughout the next century. The center of gravity of the Christian world has shifted from Europe and the United States to the Southern Hemisphere and, Jenkins believes, it will never shift back. So when American Catholics, for instance, talk about the necessity and the inevitability of reforms (reforms that Southern Catholics would most likely not condone), they do so without fully realizing that their views on the subject are becoming increasingly irrelevant, because the demographic future of their Church lies elsewhere.