"More important still, we need to bring back the common theology "
That's the goal, Latin is a part of the means.
Agreed. I would like to see Latin reintroduced not at the seminary level, nor even at the High School level, but universally at the Middle School level. Culturally and academically, the restoration of Latin as a real language (and not just a tool for studying Caesar) would be a boon for Western society.
Vivat lingua materna in corde hominum!