Why even admit there was a Jesus? It would be better if you just discounted Him altogether.
Jesus existed, there is no doubt of that. The questions are what was the reality of his life in that era as opposed to the number of the myths that have arisen over the last 2000 years. There is just a lot not really known about Jesus.
Even in my lifetime JFK, Martin Luthor King, Jr,. Bobby Kennedy, and Ronald Reagan have taken on a lot of Myth as to the reality and those are very documented people. Yet we have historians and people who attribute all manner of things to them that are not true.