All Christians believe in the Trinity, and all Christians absolutely acknowledge Christ as the Son of God, and absolutely acknowledge that Jesus and Jesus alone came in the flesh. Now, I have already explained that because Jesus is the Son of God, and came alone in the flesh, that this in no way excludes Him from His Godhood. Just as you being the son of a human does not exclude you from being a human. You are such a simpleton.
There is no such thing as a Trinitarian. There are Christians, and there are non-Christians. I am a Christian, you are a non-Christian. Very simple.