Should Protestant Trinitarians focus on lack of repentance as the reason for non-Trinitarian views of the Deity?

There are objections made that scripture does not explicitly state that 'Jesus Christ is God' and I see many arguments to and fro about this matter. However it *was* preached, by Paul as soon as he started preaching, that Jesus Christ is the Son of God. And this was the reason that Jesus was crucified because it was claimed (but not proved) that he, himself, stated this in public. Of course, Peter said, privately, that Jesus was the Christ, the Son of the Living God ; and was not rebuked for so saying, rather Jesus said that this was the rock on which his church would be built. That Jesus Christ is the only begotten Son is clearly stated in the bible and that he is equal to God, being in form, God. And that he is God manifest in flesh. And that the eternal life which was with the Father was manifested. And that God was the Logos who was also in the beginning with God. But some do not see these things, in scripture, and arguments are constantly raised against such scriptures being used to express Trinitarian faith. I notice that Peter's faith was only confirmed after he had, first of all, been under the ministry (a ministry of repentance) of John the Baptist. He it was to whom Jesus came and those disciples (John and Andrew at the time) who followed John, first, were then told to Behold the Lamb of God ; and the only way to do that was to follow the one who was walking onwards, further. (John 1-3.) Thus those who do not submit, first, to the words of John the Baptist, in a baptism of repentance, will not actually follow Jesus, the Lamb of God, the one who will voluntarily be sacrificed. They will follow what they call 'jesus' but it will not, actually, be the Son of God. Note what 'Son' clearly means : only begotten and equal. For if one does not perceive the depth of one's sins ; the profundity of transgressing against the Almighty ; the absolute necessity that sins against the Eternal warrant an eternal response ; that crimes against the Most High cannot possibly be eradicated by other than Divine means . . . . . then they will simply not appreciate the need of a Divine Saviour, a Mediator between Deity and humanity, who possesses all the attributes of Deity and all the attributes of humanity that he might resolve eternal justice against mortal human beings. So I ask of Protestant Trinitarians, in their expressing the doctrine of Christ, whether they think they should continue to argue a point that scripture does, not, as such, state. And whether they should not dig deeper and see that the problem is one of lack of repentance and not one of religious argument ? My question is asked of Protestant Trinitarians who wish to enlighten others regarding the doctrine of Christ.