Your repeated claims about what you think the bible teaches doesn't make Trinity to be true; maybe it is but from your explanation, so far it doesn't hold much water.
I'm not a oneness guy, i don't ascribe quantities to God. The oneness of God has nothing to do with quantity but His attributes (meaning He Alone). For example, He alone is the creator of the universe, otherwise God is spirit.
The relationship between the Father/Son/Holy spirit is as explained in the bible, they are not persons but authorities of God whose holder is Jesus.
Isa 9:
6For unto us a child is born,
unto us a son is given,
and the government will be upon His shoulders.
And He will be called
Wonderful Counselor, Mighty God,
Everlasting Father, Prince of Peace.
This one child has these authorities:
1. Eternal Father = Father
2. Son = Son
3. Wonderful Counselor = Holy spirit
Q. How many persons are we talking about here?