I’d have issue with this; I already say one pledge to my country. I’d feel very uncomfortable pledging to another flag.
Since I’m not Roman Catholic, I couldn’t pledge to follow the Catholic Sacremental way of life.
Something more generic would be in order.
A most noble effort, but i think its back to the drawing board Fr. Jim.
Every Catholic home in the USA is considered the domestic church and so an extension of the parish church and the parish church is extension of the diocese and the diocese is an extension of the vatican and so that is why all faithful Catholic share citizenship with the vatican. VI. THE DOMESTIC CHURCH
1655 Christ chose to be born and grow up in the bosom of the holy family of Joseph and Mary. The Church is nothing other than “the family of God.” From the beginning, the core of the Church was often constituted by those who had become believers "together with all [their] household."166 When they were converted, they desired that “their whole household” should also be saved.167 These families who became believers were islands of Christian life in an unbelieving world.
1656 In our own time, in a world often alien and even hostile to faith, believing families are of primary importance as centers of living, radiant faith. For this reason the Second Vatican Council, using an ancient expression, calls the family the Ecclesia domestica.168 It is in the bosom of the family that parents are "by word and example . . . the first heralds of the faith with regard to their children. They should encourage them in the vocation which is proper to each child, fostering with special care any religious vocation."169
1657 It is here that the father of the family, the mother, children, and all members of the family exercise the priesthood of the baptized in a privileged way "by the reception of the sacraments, prayer and thanksgiving, the witness of a holy life, and self-denial and active charity."170 Thus the home is the first school of Christian life and "a school for human enrichment."171 Here one learns endurance and the joy of work, fraternal love, generous - even repeated - forgiveness, and above all divine worship in prayer and the offering of one’s life.
1658 We must also remember the great number of single persons who, because of the particular circumstances in which they have to live - often not of their choosing - are especially close to Jesus’ heart and therefore deserve the special affection and active solicitude of the Church, especially of pastors. Many remain without a human family often due to conditions of poverty. Some live their situation in the spirit of the Beatitudes, serving God and neighbor in exemplary fashion. The doors of homes, the “domestic churches,” and of the great family which is the Church must be open to all of them. "No one is without a family in this world: the Church is a home and family for everyone, especially those who ‘labor and are heavy laden.’"172