Terry,
I disagree with your conclusion but not your facts. When I was in college and studying NT, I was aware that I needed an A to get into a decent school afterwards. Seeking to avoid an emotional JW issue and be distracted, I researched a paper on the "Historical Jesus," having no idea in the world what it meant. I have pursued my study as an interest since that time. Few scholars agree on so many points. Within the last two years, I read one of the best books on the subject, Marcus Borg and N.T. Wright's The Meaning of Jesus-Two Visions. Both studied with the same professor. Although they agree on so many facts, they are divided on many issues. Our first class exercise at the start of the Jesus seminar was to hear Jung's statement that we project all our dreams, frustrations onto this person Jesus. We had to quickly write three adjectives to describe Jesus in the gospels. Despite INtro to NT being a prereq., only two Orthodox male Jews succeeded with a correct interpretation. I could think of no adjectives under pressure.
There were many Christianites. I strongly doubt that Jesus started any church. A close reading of Acts and Paul's letters shows how fragmented Christianity was from the very start. The apostles argue about Jesus during his lifetime. They seem more confounded than outsdiers.
Elaine Pagels' main body of work is Gnostic Christanity. She explained politcal and social forces, secular ones, that would lead a continuing church to embrace Paul's theories of Jesus. First, the appeal to Greek Christians. Second, Christology. Paul's Jesus is very potent. Third, the great unwashed masses could embrace it. Gnosticism appealed to better educated and sophisticated Christians. Paul's variant could reach successive generations. How many hippie communes still exist from the 1960s.
Yet another factor I've noted when researching nonWestern forms of Christianity is that the West seems to have embraced Paul as the main apostle. Middle Eastern churches and Indian churches follow different traditons. They have the apostle who supposedly founded their churches as the main source. Of course, I don't know these Christianites well.
HIs contemporaries were thorougly confused by Jesus. Pauline Christianity is the West's version but it is not the only version. Even in the West, there were major disputes and war over theology for a long time. The Protestant REformation is one of many. IMO, no form of Christianity is accurate to Jesus.