Chuck Colson writes on Brazil's dramatic cultural change since 1960:
Since 1960, the fertility rate for Brazilian women has dropped dramatically, from 6.3 births per women to 1.9 — which is below replacement level.
While China’s fertility has also fallen drastically, it’s due to the government’s coercive one-child policy. But in Brazil, author Cynthia Gorney notes, “where the Roman Catholic Church dominates, abortion is illegal (except in rare cases) and no official government policy has ever promoted birth control.” So, the birth dearth there must be driven by something else.
Like many Western countries, Brazil has seen a tectonic shift in culture since 1960. Radical individualism and secularism have led people to ignore the Church’s teachings about sex, contraception, and sterilization. Consumerism makes two or fewer children (who after all, are expensive to raise) more desirable.