.... you would be hard pressed to find any non-religious, agnostic historians who would claim that any of those references can be trusted as completely authentic and proof of a historical jesus. the idea that jesus didnt exist isnt something that the mainstream academic community has ever taken seriously, mainly because of the high population of christians among them.
Well there is always your handful of naysayers but the general consensus is the evidence is overwhelming that he existed and it`s much more then 90% of historical figures in antiquity from Alexander the great to Sargon of Akkad, from Hamurabi to the Pharaoh`s of Egypt(most of them).
If you make this argument you have to make the same argument about almost every historical figure.