You mention not only the unity but also the holiness of the Catholic Church. Here at least your position becomes impossible. Indeed, how much of the spirit of Christ is found in any Church to-day?

It is to be found whole and entire only in the Catholic Church, as a Church, for the Catholic Church is holy in her Founder, in her teachings, worship and discipline, and can alone inspire a completely Christian spirit in men of goodwill. This, however, does not imply that every member of the Catholic Church is holy. Many, to their own shame, do not live up to their faith.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty