Only an Armnian could say that choice is synergistic. Regeneration is monergistic.

Therefore, God literally is the cause of the choice to become a Christian.

We can play ad hominem games all day long. But the bottom line here is you will need to define your terms.

If you mean by "choice" what Arminians call "libertarian free will", that is an uncaused choice that has no outside or internal determining factors, then you have no basis for morality, ethics, or human responsibility.

Charlie

For "who has known the mind of the LORD that he may instruct Him?" But we have the mind of Christ. (1 Corinthians 2:16 NKJ)