Actually, Documentary evidence outside of the New Testament is limited to put it mildly. Everything else is just second- or third-party claims from decades after he supposedly lived by a few Jewish and Roman scholars, most of which weren’t even alive at the time.

The false notion that there’s a credible secular consensus stems from a bunch of Christian historians (the concentration of which is higher than in every other specialty within history, for obvious reasons) agreeing with each other that of course their imaginary friend’s son who’s also his own dad and a disembodied spirit TOTALLY existed as a historical figure, nothing religious about believing so! 🙄