He assumes no words were left because the powers at be did not include them in the Bible. He's right to be skeptical of the canonical scriptures, but what does he do with the MOUNTAINS of writings withheld and kept in secrecy by the Vatican?
There is an account of the life of Jesus written in Aramaic, which has been long withheld by the Roman Catholic government. It has been withheld because it could weaken the faith of "the one true church." This is because it completely shatters the illusion that has been created of who the man Yeshua, called Christ/Messiah/The Anointed.
Slowly more and more sources have been released by the Papacy. Now new information, including the claimed "Jesus Tomb" and a history of a man in India who bears a compelling history that matches the gaps of the canonical accounts of him.
As far as Jesus saying he was the only begotten son of God, that's debatable. Things documented that Jesus said that are similar across both canonical and non-canonical accounts include:
"Why do you call me good? No one is good but God."
He states that no one is greater than John the Baptist.
When Peter says he is the Messiah, Jesus tells him not to tell anyone that.
He states that those greater than him (or sometimes those doing greater things) will be coming after him.
The Gnostics were the original Christians. I've NEVER heard this guys claims that they viewed Jesus as existing in a higher spiritual realm and not physically. They believe he was connected to God at a higher spiritual level and the greatest of the prophets (much as Buddhism and Islam teach, replacing God with "universe" and "Allah" respectively). They do not believe him as God incarnate, but as an example in how to live life.
The earliest Gnostics (labelled such by Rome after they had manufactured Christianity and began wiping out these peaceful nomadic sects) were the Essenes and the Ebionites. The Nazarenes came shortly after.
None of these groups had anything to do with "say you love Jesus and you'll be saved." Jesus was a role model, a figure of inspiration, much as many other great leaders who have come before and after (Dr. King and Mahatma Gandhi come to mind).
However, seeing the chance to usurp this religion of love and forgiveness and community, Rome stole the beliefs, altered and muddied the waters, and instilled their own pagan beliefs over top of the ideals of the earliest "Christians."
SOME PAGAN BELIEFS FOUND IN DOGMATIC CHRISTIANITY:
Trinitarian belief system
God impregnates a mortal
God-child offspring worthy of worship
Virgin Birth
Death and Ressurection
Easter and Christmas scheduled according to solstice holidays. Trees, rabbits, eggs, lights, and many other symbols of these holidays have pagan origins.
None of these ideas were held by ANY of the earliest sects of what we could label as "christians."
Saying that many writings from the time of Jesus omit accounts of him disprove someone named Yeshua existed and lived in what is now the Palestinian/Israeli region. However, it is also historically shown that Rome destroyed documents counter to their version of Christianity, so how can potentially edited history (as the books of the Christian Bible have been as well) prove or disprove anything other than we know what the government of the time wanted people to think.
The guy has a lot of good information, but he misses the fact that there has been more and more evidence surfacing recently that a man who fits the description of Jesus did exist. However, the picture being painted is much different than what we have all been told to believe for about 2000 years......