[redleghunter]

Finally, the acquiescence to the popular usage of “Roman Catholic” bears little on the objection that the modifier “Roman” is a Protestant epithet. In fact, given the emergence of fraudulent uses of the word “Catholic,” (Old Catholic Church, etc.), it’s probably a wise if unfortunate inclusion when discussing theology or identifying parishes as being in union with the pope.

So it's not just a Protestant epithet but also a way to distinguish between, for example, SSPX?

[Salvation]

There is only one Catholic Church, but many Rites throughout the world. (What protestants call Roman Catholic) is only one of them.

Ukrainian (Catholic) Church an example of 'synodality' for Pope
Traditional Rites in Union Now with the Catholic Church
Catholic conservatives: A traditionalist avant-garde
The Rites of the Catholic Church [Catholic Caucus]
One and Many Churches (origins of the Church)
THE RITES OF THE CATHOLIC CHURCH -- There are many!
(Cardinal) Newman on Rites and Ceremonies