Father Z, although somewhat ideological about it, is right. The Latin Mass, and in my opinion, in either form, unifies Catholics as does the common ritual in both. Divisions begin to occur when diversity in language and ritual are allowed to reign as is encouraged in the ideology of inculturation and the rubrical allowance in the Ordinary Form of “In these or similar words.” Also, in the Ordinary Form the personality or lack thereof of the priest plays an ultra negative part in its celebration.
Let’s talk about the unity of the Church prior to Vatican II in diverse cultures from the USA to China, to Burma to the North Pole and Antarctica, the Church was united in language and liturgy. Devotions both private and communal were the inculturation aspects of the Church’s spirituality and these devotions, most of which do not need an ordained man to celebrate, flourished. Inculturation was splendid.
But as it concerns the Mass, any priest throughout the world could celebrate the Mass for any congregation no matter where in the world and as remote as Siberia. The only difficulty for the priest would be the homily if he could not speak the vernacular. But that could be solved by having an interpreter and if no interpreter was available, the Mass stood on its own without a homily.
Yes, the Latin Mass is a great source for the Church’s unity.