Steel,
I have to concur. Upon leaving the Witnesses I learned what Trinitarians actually believe. In all honesty none of the arguments advanced by Jehovah's Witnesses work with Trinitarians because Witnesses always start off with a false premise of misunderstanding what the Trinity is to begin with. Being that the doctrine was pre- and post-Biblical, the arguing from Scripture to prove one way or the other with a Trinitarian never works.
From my current standpoint, I have to say it doesn't make sense to believe in Jesus if he is not God. While Jews, as you know, don't accept Jesus as the Messiah, as the side note Myelaine brought up about the Catholic Church's admission that the Messiahship of Jesus actually transcends instead of instantly rising from Hebrew Scripture leans in favor of Jesus being the Epiphany that the majority of Christianity claims him to be.
Jesus did not fulfill the immediate Messianic hopes of the Jewish people, which even the questions raised by his apostles prove (as for example Acts 1:6 demonstrates). Therefore something beyond these hopes must have been seen in Jesus that got his followers to come to the conclusion that they embraced. Jesus himself was often unusually silent about declaring he was the Messiah, and except for his outward statement to the Samaritan woman at Jacob's Well (John 4:25, 26), he generally refused to openly acknowledge or support such a conclusion. Something beyond the Jewish concept of the Messiah was at work here, and as Catholicism acknowledges, it has become the touchstone of the Christian belief about a Messiah who redeems through his own self-surrendering sacrifice.
It would also make sense that this transcendent Messiahship of Jesus would contrast with the Great Theophany. For the Jews, God appeared through visible signs, in fear-inspiring flames, trumpet blasts, and thunderous voice at Mt. Sinai during the Great Theophany, whereas (according to Christians) God later comes through the visible sign of a humble human, hidden from sight in the Person of Jesus as Epiphany. In Theophany, the invisible God is made apparent through visible demonstrations, whereas in the Epiphany, the invisible God is hidden in human form, though visible. The Theophany demanded Moses to go up on behalf of the people in order to get God's Law, whereas in the Epiphany, God descends to the people in order to bring them God's liberation from the demands of law. In the Theophany, Moses is the mediator that brings God to the people, whereas in the Epiphany, God is now directly involved with the people through Jesus. The Theophany brings forth physical Israel, the Epiphany brings forth spiritual Israel. The Theophany occurs with humans making offerings to God of the flesh and blood of bulls, whereas in the Epiphany, God offers his life to humankind on the cross as the "body and blood" of life-saving "food" for humanity.
Again, Jews don't believe in the Trinity or in Jesus as the Messiah. But I can see the logic behind Christendom's view. When you do it the JW way and Jesus is just the archangel Michael in the flesh, all the rest is lost. It makes even less sense. If the New Covenant that Christianity believes in is supposed to be greater than the Old given to the Jews, why would the Great Theophany be paralleled with the arrival of an angel in the flesh? That makes no sense at all. That isn't greater or even comparable to the Great Theophany. No, even as a Jew I declare that this required the Epiphany of God, no less. If it is a greater covenant, it needed something greater than a theophany, something only an epiphany could provide. The mere materialization of an angel, even that of an archangel, could not fit the pattern.