[ealgeone]

"Roman Catholic" is a Protestant slur invented to make Catholics foreigners in their English-speaking countries.

The term "Roman", as in the "Roman Church", has been used since the Middle Ages – often connoting the local particular church of the Diocese of Rome – the first known occurrence of "Roman Catholic" as a synonym for "Catholic Church" was in communication with the Armenian Apostolic Church in 1208, after the East–West Schism.[3][4]

[I don't think the Armenians were big on English as a language!]

Like the term "Anglican", the term "Roman Catholic" only came into widespread use in the English language in the 17th century.[24] The terms "Romish Catholic" and "Roman Catholic" were both in use in the 17th century and "Roman Catholic" was used in some official documents, such as those relating to the Spanish Match in the 1620s. There was, however, significant tension between Anglicans and Roman Catholics at the time (as reflected in the Test Act for public office). Even today, the Act of Settlement 1701 still prohibits Roman Catholics from becoming English monarchs.

he Baltimore Catechism, the official catechism authorized by the Catholic bishops of the United States between 1885 and 1965, statet: "That is why we are called Roman Catholics; to show that we are united to the real successor of St. Peter" (Question 118), and refers to the Church as the "Roman Catholic Church" under Questions 114 and 131.[113] There are efforts of conservative Catholics to keep alive teachings of this catechism that were not retained in the Post-Vatican II catechism published in 1992,[63] like "Roman Catholic Church" that has not appeared in the Catechism of the Catholic Church since 1992.[114]

https://en.wikipedia.org/wiki/Roman_Catholic_(term)

Guess those mean ol' Protestants are forcing these Roman Catholic churches to identify in this manner!

[aMorePerfectUnion]

I will continue to call the Roman religion “Roman”

And I will not use their preferred personal pronouns.

[Elsie]

"That is why we are called Roman Catholics; to show that we are united to the real successor of St. Peter"

What ELSE could True Scotsmen do?

[annalex]

the term "Roman Catholic" only came into widespread use in the English language in the 17th century.[24] The terms "Romish Catholic" and "Roman Catholic" were both in use in the 17th century and "Roman Catholic" was used in some official documents, such as those relating to the Spanish Match in the 1620s. There was, however, significant tension between Anglicans and Roman Catholics at the time (as reflected in the Test Act for public office). Even today, the Act of Settlement 1701 still prohibits Roman Catholics from becoming English monarchs.

That is the history of the slur, indeed.

The physical plant of a Catholic Church would have to further specify the Rite. I don't want to enter a "Catholic" Church in a town I am not familiar with and discover that the service is in Arabic.

It is also true, as you note, that "Roman Church" is often used, especially further back in history, because in the Middle Ages there was just one Church in the West, the Roman Church. It is no longer the case today.

It is proper to say "Roman [Catholic] Church" in a discussion about the liturgy, the order of Mass, the use of unleavened bread, the use of Latin language, etc. But in an ecumenical brawl with the Protestants these are hardly ever discussed. When I see "RCC" in a post, I skip over it quicker, since I know that the poster doesn't know what he is talking about.