You passed all right. Passed right by what ekklesia really means
I have a different perspective, come at it from another angle, so to speak.
כל ישראל חברים – All Israel are brethren.
There is one holy catholic and apostolic church. If one declines to identify one's affiliation while attacking the Catholic Church, I assume subterfuge, barring some compelling reason otherwise. There are do many denominations, sects, and cults. Take Marc Driscoll; take Bill Gothard; take Jim Bakker; take Ernest Angeley; and we have not even started with the prophetesses yet. None of the antiCatholics seem willing to openly share their denomination as an alternative. They freeze up and recite cultic like answers to deceive the listeners. You don't get to know what you bought until later when they indoctrinate you in home Bible studies and/or get you on the donor list.