Ecumenism, for one. The Second Vatican Council was very divisive among Catholics, and to this day the Church has to keep pressing it upon and against the will o

Ecumenism, for one. The Second Vatican Council was very divisive among Catholics, and to this day the Church has to keep pressing it upon and against the will of old-school Catholics. Some felt so offended by it they left the Catholic Church altogether so as to stick with what it used to believe in before the 1970s.