"... after that everything changed."

"This went on until the middle of the 1970s, after that everything changed."

The damage to the world caused by the abandonment of the Holy Faith by the Catholic Church institution might never be completely calculated by history, nor may its causes ever be completely understood. There is little in human history to compare to it, and there is probably not one area of life anywhere in the world that has not been affected by it, even in those far countries where there is nearly no Christian presence.

It is hard to imagine what could possibly restore it,

apart from the Parousia.