I just wonder how important doctrine is when it comes to Christian belief. We are told clearly in Scriptures that we will be judged by our "deeds" not doctrine. Trinitarians and unitarians can line up various Bible verses and quote from the "Church Fathers" to promote their views. In the past, trinitartians and unitarians (Arians) killed each other over this one particular doctrine. In doing so, they violated the basic Christian teaching about love.
Jesus used the best parable: The Good Samaritan. In it, he illustrated how those who had "the truth" of that time (the priest and Levite) lacked the human compassion to help one in great need. It was the Samaritan who responded even though he was despised by the Jews for his apostate beliefs and his false religious practices. Yet, Jesus clearly illustrated who the "good neighbor" was....not those possessing "the truth" but the one who showed compassion and mercy. It's a great lesson for everyone today.