How ironic (and refreshing) for Father Raniero Cantalamessa to say this. A year ago, on one of my threads, a Catholic poster had this to say in contrast:
"In the Catholic apologetics business, you all look alike to me. So, don't expect a Catholic to sort your distinctions out, especially when you collectively and in unified front busy yourselves with what the Catholics think and do."Anti-Catholicism: A Phony Issue
I do quite a bit of Protestant-on-Catholic dialog. The battle tends to be all on Catholic turf: why Mary, why Pope, why the Saints, why confession, etc. In the Catholic apologetics business, you all look alike to me. So, don't expect a Catholic to sort your distinctions out, especially when you collectively and in unified front busy yourselves with what the Catholics think and do.(Annalex, linked above)
They are also often aggressive and polemical. They invariably spend more time accusing and criticizing the Church, Mary and, in general, everything Catholic, rather than proposing their own positive ideas. They are the antipodes of the Gospel of Jesus, which is love, sweetness, respect for the freedom of others. Gospel love is absent from the sects.
(Fr. Cantalamessa above)
As you can see, one way to eradicate sectant tendencies in Protestantism is to get busy in your own Protestant world rather than slandering the Church.