“In addition to denying this dogma, there are at least three others that are not accepted by the Greek and Russian schismatics: they are the dogmas of the Immaculate Conception, the Papal Primacy and Papal Infallibility”
Immaculate conception was proclaimed as infalliable well after the split. So there’s plenty of things that we’ve done in the past millenium that will have to be caught up.
It seems to me that the primary obstacle is Petrine Primacy, and probably infalliability as well, both of which were declared in the 19th century. I hope they can eventually overcome these issues. Petrine primacy is how the Church has always worked, Constantinople isn’t even the oldest eastern patriarch, and none of them save Rome has remained in Christian jurisdiction for quite some time.
This I think is the gravest tragedy. There were 5, and now there are 1. Would be nice to have all 5 together again.
Edit, that should read, (immaculate conception and infalliability) were both proclaimed as infalliabile at Vatican I, IC, not Petrine primacy.