Much has been said by Traditional Catholics such as myself about the novelty and emptiness of ecumenism and inter-religious dialogue. Yet we have few better proofs of this than the saints themselves in their dealings with non-Catholics.

Today we have the example of St. Benedict:

The fortified town of Cassino lies at the foot of a towering mountain that shelters it within its slope and stretches upward over a distance of nearly three miles. On its summit stood a very old temple, in which the ignorant country people still worshiped Apollo as their pagan ancestors had done, and went on offering superstitious and idolatrous sacrifices in groves dedicated to various demons.
When the man of God [St Benedict] arrived at this spot, he destroyed the idol [he did not show it respect at an inter-religious prayer service for world peace, twice, or dialogue with the people], overturned the altar and cut down the trees in the sacred groves. Then he turned the temple of Apollo into a chapel dedicated to St. Martin [of Tours], and where Apollo’s altar had stood he built a chapel in honor of St. John the Baptist. Gradually the people of the countryside were won over to the true faith by his zealous preaching. (Emphasis mine)

-St. Gregory the Great
The Dialogue, Book II