You are not being unreasonable or elitist. So, which denomination is closer to teaching the truth?
One must first consider in an organism, a hierarchy is required, so that it may be really active, and wholesome, that is, someone who commands, someone who transmits orders, and those who obey. That is what happens in the courts of kings, as well as in religions
. In religions
, even if they are so impure
, there is always a chief, his ministers, the servants of the ministers, and lastly the believers. A pontiff cannot act by himself. A king cannot act by himself.
Jesus laid the groundwork for His Church by gathering the first apostles and disciples and preparing the twelve apostles for ministering to souls in word and deed. The apostle, St. Peter, was chosen to be the one who Jesus would build His Church upon, meaning chosen to be the Head in the ecclesiastical hierarchy
(Mat. 16:18), by the divine Head of this mystical Body
(Col. 1:18), and instructed to feed His sheep
(Jn. 21:15-17).
St. Peter and the other apostles elected the disciple St. Mathias to replace Judas the Iscariot in ministry and apostleship
(Act. 1:24-26). St. Peter instructed elected elders (
πρεσβύτερος [presbuteros]), whilst referring to himself as a fellow elder (
συμπρεσβύτερος [sumpresbuteros]), to feed God's flock, or take care of it
(1 Peter 5:1). How many flocks, or folds, did Jesus speak of?
One (Jn. 10:16).
The
line of the succession of Peter and his ministers continues to this day within the Church. The only Church that traces back to St. Peter and the other first apostles and disciples is the Catholic Church, thus it is not a "denomination" of Christianity, as in "a branch of any religion." This sentiment may leave a bad taste in mouths, but it is a biblical and historical truth.