And I guess you’ve never heard of Josephus? He’s only the most well known Jewish historian since Moses.
Jesus most certainly lived, no serious scholar of history claims otherwise.
But you are correct that historians generally consider Jesus to be historical. It is not so much due to Josephus though, but more due to critical reading of the Gospels themselves.
Regardless, Jesus was absolutely a historical character. No serious historian debates this.
Jesus is a known historical figure. Pretending otherwise is silly. The end.
You are espousing the Jesus Myth theory. That is a fringe theory which have generally been rejected by historians. The similarities with Amon etc. are pretty superficial except for the universal resurrection theme. Don't believe the websites with long lists of unsourced parallels.