I can accept that "catholic" means both "universal" and also that it has been applied to a large, distinct Church that was created in the 4th century with the secularization of Christianity.I accept that Catholic means universal, it is you who can not accept that Catholic means a large, distinct, Apostolic Church under The Chair of Peter. Anything but that surely.
The problem is that you have to weigh Scripture (which describes the Apostolic Church as small congregations, independent and differing in practice, under an "overseer" chosen by the congregation and from the congregation...something Baptists often ignore as well) against what the RCC has taught you and side against Scripture.
That is why we will not agree on this.
We have different standards.
Where I hold my Church as accountable to Scripture you hold Scripture as subordinate to what your "church" teaches.
I test what my church teaches against God's Word.
You test what your "church" teaches against what your "church" teaches.
And that is fine. It just means we will never agree.
I find discussing theology with Roman Catholics is very much like discussing theology with Mormons. The similarity is Roman Catholics and Mormons hold their "church" dogma as absolute truth and the interpreter of Scripture. The difference, of course, is that tge gospel is in Roman Catholic doctrine (Catholics can be Christian despite their doctrine, Mormons cannot).