Sorry, but the Babylonian, Greek, Egyptian, etc. scientists that predated Xtianity in some cases by thousands of years would beg to differ. Besides, Xtianity, among other religions has found itself in conflict with science for obvious reasons. Your boy St. Augustine is well known to have written of just this issue in favor of reconciling the two.
Jews don’t believe in the divinity of Jesus and I have yet to hear a Xtian say they don’t worship the same god.
Going back to what I said about the possible non-existence of Jesus, I do believe the chances were good that he existed. There is a good bit of scholarly work that generally supports it. However, as was mentioned earlier, the lack of any contemporary writings from neutral parties is what makes me give the historical Jesus the side eye. So, Josephus is the first and his tome was almost a century after the fact. Therein lies the rub. Let’s say some guy comes around doing all sorts of supernatural miracles and caps it all off by rising from the dead. Seeing this, nobody among Jesus’ contemporaries thought it worthy of writing about? Yes, most of them were illiterate, but there’s no contemporary art either. All of a sudden, several decades after the fact, then the books, art, etc. starts up. Moreover, none of these people that saw this stuff kept “souvenirs” of the experience? “Holy crap! That guy just walked on water, healed some dude and fed a multitude of people with just a few fish and stuff. I’m gonna get his sandal!” And yet there are all sorts of alleged relics of other religious figures around.
So, my personal take is similar to Ehrmann’s. Jesus probably existed but not at all in the way he’s thought about today. Instead, he was probably just a charismatic, itinerant radical (for the times) preacher who found himself on the wrong side of the religious and political elites and got himself crucified. His followers then sought to keep his legacy alive and gained converts preaching the good news. Over time, with its start as an oral tradition, the miracles and other stuff got added in, and away we go.