You are in a bad spot here.
- Your argument is poorly formed and not a very valuable one to fight for.
https://en.m.wikipedia.org/wiki/Ad_hominem
- Your argument shows a distinct lack of awareness of how history is analyzed and measured for authenticity.
https://en.m.wikipedia.org/wiki/Historical_criticism
- You are being extremely aggressive about a thing you are simply wrong about.
It doesn't even take that long to find credible sources to demonstrate that denying the historicity of Jesus is the fringe theory.
https://en.m.wikipedia.org/wiki/Historicity_of_Jesus
This is a meaningless hill to die on. You are simply wrong and you should move on to things that are actually valuable.
Edit: and the first comment even linked how you are wrong and you still want to fight this battle???