Your refusal to give a straightforward answer testifies to avoidance, or that your cannot answer them, and thus you have no argument. Again,
the question of definition must be asked, which is upon what basis was the original holy, catholic, apostolic church established? On the premise that being the historical instruments and stewards of Divine revelation (oral and written) means that such possesses assured infallibility, as Rome claims?
And that this is essential for the conveyance, determination, assurance and preservation of Truth, and with authenticity being assured by historical descent?
It sees to me you are articulate, intelligent, with an astute, agile, and facile command of the Scriptures and Biblical languages. If you are wholly convinced the Catholic Church is erroneous, and the Eastern Orthodox as well, why not be an advocate for an Independent Fundamental Baptist remnant that is the direct descendant of genuine apostolic New Testament churches ? And if not, will you in a sentence name which denomination(s) you deem acceptably authentic New Testament churches ? Is there a kosher alternative to publicly confessing Jesus is LORD and Messiah tomorrow in a local Catholic Church (assembly) ?
You questioning is all based upon a fundamental issue of determination of Truth and authenticity, as were the questions asked of Christ by the powers that be on this issue, and thus like as with them, it is you which must clearly answer the questions put to you, rather than avoiding them.
It seems to me, (hmm, should I call you by an honorific here ?), that there are a dearth of straightforward answers coming my way. Nonetheless But whereunto shall I liken this generation? It is like unto children sitting in the markets, and calling unto their fellows, And saying, We have piped unto you, and ye have not danced; we have mourned unto you, and ye have not lamented. For John came neither eating nor drinking, and they say, He hath a devil. The Son of man came eating and drinking, and they say, Behold a man gluttonous, and a winebibber, a friend of publicans and sinners. But wisdom is justified of her children.
I believe one holy catholic and apostolic Church, where my King said And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it. And I will give unto thee the keys of the kingdom of heaven: and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven and his Jewish Apostle wrote built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone;