I am wondering if you've read this very informative book by Reza Aslan? Below is a description of it. I recommend it. I think you've conflated the idea of Jesus as son of god with the historical Jesus.

Also Jesus was probably a gnostic. Gnosticism is a collection of religious ideas and systems that coalesced in the late 1st century AD among Jewish and early Christian sects. These various groups emphasized personal spiritual knowledge above the proto-orthodox teachings, traditions, and authority of religious institutions. As a gnostic, his beliefs probably centered around god being Creation itself and thus would never have framed himself as being the only son of god.

"Two thousand years ago, an itinerant Jewish preacher walked across the Galilee, gathering followers to establish what he called the “Kingdom of God.” The revolutionary movement he launched was so threatening to the established order that he was executed as a state criminal.

Within decades after his death, his followers would call him God. Sifting through centuries of mythmaking, Reza Aslan sheds new light on one of history’s most enigmatic figures by examining Jesus through the lens of the tumultuous era in which he lived.

Balancing the Jesus of the Gospels against the historical sources, Aslan describes a man full of conviction and passion, yet rife with contradiction.

He explores the reasons the early Christian church preferred to promulgate an image of Jesus as a peaceful spiritual teacher rather than a politically conscious revolutionary. And he grapples with the riddle of how Jesus understood himself, the mystery that is at the heart of all subsequent claims about his divinity.

Zealot yields a fresh perspective on one of the greatest stories ever told even as it affirms the radical and transformative nature of Jesus’ life and mission. "