The Christian God has, in two thousand years, persuaded less than half of the planet that he is the One True God.
Frankly, Coca-Cola has a better record of market growth in a short time. The Christian God cannot be said to have made His Case clearly since it is, on the evidence, not terribly persuasive. Indeed, it's not even the most rapidly growing religion today.
Thus if, upon my demise, I were to be confronted by the Christian God demanding why I did not prostrate myself before Him, I must in honesty reply just as I would to the God of the Zoroastrians: "Sir, you failed to provide the proof that would persuade a reasonable man, and as evidence I offer the fact that most reasonable men have not been persuaded."
The True God is not unreasonable.