If He didn't exist, then why would a Roman and member of the Sanhedrin who went out of his way to persecute 'Christians' immediately turn from an enemy to one of the most zealous advocates and apostles to explain and document what and who Jesus Christ was all about?
This theory generally includes the supposition that Paul was the one who invented Jesus.
You cant't use information contained in a fictitious document to prove its validity!
It's a miracle that religion exists at all with brainiacs like this one.
I thought that there was mention of Jesus in Roman records of the time. Tax records maybe? I can't remember.
Paul is credited with inventing and articulating Christianity as we know it today as a whole different religion from Judaism.