Why not assume it? There have been many miracle workers during that time. The New Testament even mentions some of them. Also, the fact that Jesus' story was embellished would explain how he supposedly defied death.
Basically, you've made no real argument here. We have Paul, and then the Gospels within a relatively short time of the death of Jesus. We have a noticeable Jesus movement that was established by the time of Paul, and the Gospels. We have one historian mentioning him, with one account referencing his brother. We have what one should expect of this religious leader.
Also, "sure, whatever you say" is not a logical argument.