Let's try this again. I did read your entire post, but parts of it implied you believe only Catholic churches are what Jesus would want as a universal church.
I'm happy to admit I didn't write clearly enough. When I write "catholic" with a small c, as I wrote above, I didn't explain extensively or clearly enough, just assumed people would get what I meant: catholic with a small c does
not mean the Catholic church, but instead 'catholic' means 'universal' -- all Christian believers that believe in Christ risen, as in the Apostles' creed.
These believers are in all sorts of mere denominations, Orthodox, Baptist, you-name-it: those denominational labels don't control whether individual believers are His.
His Church -- capital C here, meaning the real thing, the entire Body of Christ, all of us, the universal Church -- is all who believe in Him, as stated helpfully in the Apostles' Creed, that we believe He came here, took on a human body, died on the cross, and rose again, and will return, and will judge the living and the dead.
When I say I believe His prayer to the Father in John chapter 17 was fully answered, and the Church has been One generally, I mean that all through the years, regardless of whatever controversies and splits on the surface, that in all churches (most all) are individual sheep which are His, and together all of them, as a whole, are the Church. And it's 'catholic' (notice small c!) meaning universal for all of humanity and that those in this Church (capital C) all accept each other as brothers and sisters in Christ.
Also, it may be this note about "catholic" from Christian Forums will help at the bottom of the sitewide creed (look for Notes section at bottom):
Statement of Faith
The Nicene Creed
We believe in (Romans 10:8-10; 1John 4:15)
ONE God, (Deuteronomy 6:4, Ephesians 4:6)
the Father (Matthew 6:9)
Almighty, (Exodus 6:3)
Maker of Heaven and Earth, (Genesis 1:1)
and of all things visible and invisible. (Colossians 1:15-16)
And in ONE Lord Jesus Christ, (Acts 11:17)
the Son of God, (Mathew 14:33; 16:16)
the Only-Begotten, (John 1:18; 3:16)
Begotten of the Father before all ages. (John 1:2)
Light of Light; (Psalm 27:1; John 8:12; Matthew 17:2,5)
True God of True God; (John 17:1-5)
Begotten, not made; (John 1:18)
of one essence with the Father (John 10:30)
by whom all things were made; (Hebrews 1:1-2)
Who for us men and for our salvation (1Timothy 2:4-5)
came down from Heaven, (John 6:33,35)
and was incarnate of the Holy Spirit and the Virgin Mary, (Luke 1:35)
and became man. (John 1:14)
And was crucified for us (Mark 15:25; 1Cointhians 15:3)
under Pontius Pilate, (John 19:6)
and suffered, (Mark 8:31)
and was buried. (Luke 23:53; 1Corinthians 15:4)
And the third day He rose again, according to the Scriptures. (Luke 24:1 1Corinthians 15:4)
And ascended into Heaven, (Luke 24:51; Acts 1:10)
and sits at the right hand of the Father. (Mark 16:19; Acts 7:55)
And He shall come again with glory (Matthew 24:27)
to judge the living and the dead; (Acts 10:42; 2Timothy 4:1)
whose Kingdom shall have no end. (2 Peter 1:11)
And in the Holy Spirit, (John 14:26)
the Lord, (Acts 5:3-4)
the Giver of Life, (Genesis 1:2)
Who proceeds from the Father; (John 15:26)
Who with the Father and the Son together is worshipped and glorified; (Matthew 3:16-17)
Who spoke through the prophets. (1 Samuel 19:20 ; Ezekiel 11:5,13) In one, (Matthew 16: 18)
holy, (1 Peter 2:5,9)
catholic*, (Mark 16:15)
and apostolic Church. (Acts 2:42; Ephesians 2:19-22)
I acknowledge one baptism for the remission of sins**. (Ephesians 4:5; Acts 2:38)
I look for the resurrection of the dead, (John 11:24; 1Corinthians 15:12-49; Hebrews 6:2; Revelation 20:5)
and the life of the world to come. (Mark 10:29-30)
AMEN. (Psalm 106:48)
Notes
* The word "catholic" (literally, "complete," "universal," or "according to the whole") refers to the universal church of the Lord Jesus Christ and not necessarily or exclusively to any particular visible denomination, institution, or doctrine.