So your argument against a God that is transcendent above all known knowledge, is that because you cannot understand everything about Him, He does not exist...<quoted text>
Read your Bible
Ironically, the shallow nature of fundamentalist Christian talking points can be revealed by looking at the Bible, which is the very tool used to create the talking points in the first place.
According to fundamentalist Christians, the Bible is to be taken seriously as the authoritative word of a supreme, all powerful being.
And yet, the Bible does not confirm the talking points as being reliable or truthful.
One definition of a myth is as follows,
A person or thing having only an imaginary or unverifiable existence
The key word here is unverifiable.
It cannot be established as reality, factual, or binding on others.
Some popular talking points are listed below, and all of them have more holes in them than a Swiss cheese.
Jesus was fully God and fully man.
Jesus is God, God is Triune, being composed of three co-eternal, co-equal persons.
This is the doctrine of the "Trinity", which is one of the most popular talking points and also one of the most convoluted, unsubstantiated claims in the Christian stable of theistic propaganda.
To be fully God and fully man at the same time is the theological equivalent of a shirt that is made out of 100% wool and 100% cotton.
A son by definition must also be younger than his father.
Christians parrot this "Trinity" canard constantly in an attempt to turn it into reality and a universal fact.
It is nothing of the sort.
The Athanasian Creed, which assertively sets forth the doctrine of the Trinity, also declares it to be incomprehensible.