Sadly, I have heard that a schism maybe pending in the Roman Catholic Church of Germany. After the announcement of many "Catholic" theologians in Germany demanding deformation of doctrine, the situation is not good. I could easily see a schism happening in the church.
But you realize what would happen to the schismatics, right?
Private interpretation = okay.
Birth control = okay.
Married priesthood/episcopacy = okay.
Homosexuality = okay.
Homosexual marriage = sacrament.
Open communion = okay
Mass on Sundays = not obligatory.
Very quickly, they would die. The modernist heresy and associated things would thoroughly kill them.
Married priesthood is ancient, not modernist, and hasn't weakened the Orthodox a bit. Quite the contrary.
Not sure that private interpretation is any different from "private revelation." And the Vatican is still around.
As for birth control, given the prevelance of it among the Vatican's followers, do you really want to put that on your list? It does not, btw, kill off a population: Egypt has had aggressive promotion of birth control since the 60's, and yet the population has nearly trippled. But then, Egyptian society is very family orientated, and everything, including birth control, revolves around that.