So we agree that Yeshua ben Yosef is a historical figure. However, your assumptions seem to prove your conclusions. There is more archaeological evidence, for example, Peter's house in Capernaum, and the discovery of Sepphoris, which change your picture of Jesus. Furthermore there is a lot of textual material you do not account for, the odes of Solomon or the Book of Wisdom. You are correct that there were a number of wonderworkers extant, but that the gospels insist that his miracles are not proof of his divinity.
In other words the picture from a historical perspective is more complex than you assume. Keep going!