Hi Rev Kev. Good question. Jesus is who warned us we must have the fullness of the faith.
He said the Church must be One. Now one means we must all be united in one mind, just like the Apostles and the Holy Spirit are unitied in one Mind.
The second is the Church must be Holy as Christ is Holy. Now what makes the Church Holy is the Sacraments. Remember I told you thats real important

. That is how Christ is still working today saving us.
Now the Church must be Catholic. Catholic means Universal. Which means for all of us. Before in the O.T the Temple was just for the Jews remember. The Gentiles were not welcome. But remember ST Peter said Baptise everyone, no one is excluded. Thats why we say Universal. We have this song we sing alot in Church. It says ALL are welcome in this house. Its pretty neat.
And the Last is Apostolic. That means we must have All of the teaching’s of Christ. What is written and what is given by word of mouth. Thats of course SS and ST.
But we are all united together in Christ Rev Kev, I agree with you. And we are more alike then not. But we want to try to become Perfectly United together in one another as Christ is perfectly United with His Church and then we call all come together and be perfectly united with him and one another in the Eucharist. That is what we are trying to do.
We are called to come together at ONE table. Just like the APostles were all together at One Table at the Last Supper eating together with Christ the bread and wine that gives us eternal life.
You have grown quite a bit in your thinking my friend, and your effort is wonderful. But you have a long way to go.
But don’t feel bad, My Dad told me we will have to study and pray until the day we die to learn all that God has out there to teach us. So you are not alone. We are all in the same boat!!

We are comming to a end on this one so see you again on another thread. God Bless you Rev, and all reading this.