Yes, I’m quite familiar with the trilemma, thank you, and it is incomplete; is it not possible that he was a Jewish preacher and moralist who was deified after his death?
Francois Dreyfus deals with this question in, “Did Jesus Know He Was God?” I think you’d enjoy his argument, so I’ll reproduce it for you as best as I can.
This is actually the typical argument which was introduced (in my mind, if the facts hold, a very respectable one). The argument was that in the beginning, around 33AD you had this great moral preacher, Jesus. As can be seen by the writings of the NT, it began with a very “low” Christology. By the time of the gospel of John in 90AD, only then did we get a, “high” Christology. The movement from low to high Christology shows that Jesus as God was invented by the community-- he was divinized.
The problem with this reasoning, of course, is that Paul’s Christology is equally as high as John’s, and Paul’s Christology is in the 50s, stretching back even further. Oftentimes Paul quotes hymns in his letters which have roots in much earlier Christian practice-- if you read the NAB bible, for instance, you can see these set off from regular type, because the meter in the Greek suggests that they are indeed hymns. And these have a very high Christology. Look at Colossians 1:12-20, Philippians 2:6-11, and first Corinthians 8:6, for instance.
He reasons: “2. A negative argument: the improbability of the invention of these doctrines by the community.”
a. In a pagan environment.
"At the beginning of this century, exegetes had a ready made solution to offer for this problem, namely, the very rapid appearance of the doctrine according to which Jesus was a being exisiting before the creation of the world who had to be placed on the same level as God and adored as he: This doctrine was born and developed not in a Jewish environment, which would have shunned it with horror, but in Greek-speaking Christian communities which came out of the pagan world.
“These communities preserved the memory of these “divine men” of paganism, of these mortals who were divinized after their death. Moreover, the doctrine of preexistence would come into existence in the same environment and its spread would be facilitated by the notion of some type of preexistence of souls, and opinion that was held by a significant segment of pagan philosophical thought.”
“But, at the present time, this explanation is justifiably being rejected by the great majority of critics. We find reasons for this rejection analyzed, in a very convincing fashion, by the Protestant exegete, Martin Hengel. (13)”
“Moreover, the chronological argument is by itself alone absolutely decisive. In line with the approach of Martin Hengel, let us recall what has been said previously: The doctrine of Phillipians 2:9-11, in which Jesus is adored as God, is presented as a doctrine known by the Philippians. It is certainly the faith that paul had preached to them when he evangelized the Philippians in the year 49. Since the Hymn is prior to Paul, this proves that this doctrine was widespread among Christian communities by the 50s, which places its origin several years prior to this time. But at this point in history the ideological influence of Christians of pagan backgrounds was nil since, at this particular period, almost all of those overseeing the young Church were of Jewish origin.”
b. The Jewish milieu
“Eliminating the Pagan world, the Jewish world still remains. Among the Jews there are models, texts,* and* doctrines which have served as very effective aids in thinking out and giving expression to the doctrine of the divinity of Jesus and his preexistence. In the Old Testament the Word of God, the Wisdom of God were considered as preexisting and present at the work of Creation: Proverbs 8:22; Wisdom 7:26, Ben Sirach 24:1-5; Isaiah 55:10f; Wisdom 18:15, etc. All these texts have been understandably utilized by the New Testament in order to comprehend better the mystery of Christ, Word,
Verbum, Wisdom of God. Moreover, the Judaism, which is contemporary with Jesus, presents an entire palette of notions concerning the preexistence of the Messiah, the Law of Moses, the people of Israel, Gehenna, the Garden of Eden.”