what drew you toward Unitarianism? (not to be answered in a single post ...) Trinitarians are so captured by their idolatry, they cannot consider anyone accepting Jesus as their Savior while holding there is only one God who is one being/person. Indeed, the emotion behind the 'man is God thesis' is so powerful, many trinitarians fail to recognize that any Bible verse that seems to support this 4th century heresy does nothing to advance the cause of 3is1ism as that would still only be 2.
To answer the question; Trinitarianism was always a detestable abomination to my intellect based on the following pathways of thinking.
A. The 1C. It must be important if God put it first and used singular pronoun and I cannot think of who it would especially apply to more than the Son.
B. Rejection of mysticism/dualism. 1 ≠ 2 ≠ 3. Or 1 + 1 + 1 = 1 and 1 = 1 + 1.
C. Definition, logic, & language. Consider the statement, "Jesus (the son) was raised from the dead by God (the father) to be the first fruits and is our only Mediator to God."

I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.
Galileo Galilei
To answer the question; Trinitarianism was always a detestable abomination to my intellect based on the following pathways of thinking.
A. The 1C. It must be important if God put it first and used singular pronoun and I cannot think of who it would especially apply to more than the Son.
B. Rejection of mysticism/dualism. 1 ≠ 2 ≠ 3. Or 1 + 1 + 1 = 1 and 1 = 1 + 1.
C. Definition, logic, & language. Consider the statement, "Jesus (the son) was raised from the dead by God (the father) to be the first fruits and is our only Mediator to God."
- Father. Son. By definition, not the same. And son is created by the father. No exceptions to this prerequisite arrangement. If this is not their relationship, then words mean nothing.
- Jesus said God is greater, more knowledgable & more glorious. By definition, these cannot be one and the same.
- God incarnate is not prophesied in the OT. It's not even implied in the vast majority of the NT text.
- The trinity is not in the Bible & Jesus never said to worship a triune God.
- Subject v object of sentence. Jesus has many titles. Many of them are 'of God.' The umbrella of Bob is not Bob. "I drank from the cup" ≠ "I told my servant to drink from the cup and he drank from it."
- Raised from the dead means Jesus was acted upon, the object of action by the subject, God. By definition, this is not the same as Jesus rose from the dead, doing the action himself.
- "First" implies a coming series of like. My first girlfriend was like others that followed. She was not fundamentally different from those that followed. We don't count Apples and Oranges as Apples.
- A mediator acts between 2 parties. A mediator, by definition, is not also one of the 2 parties he is mediating for.

I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.
Galileo Galilei