False choice? You seem to want to have things both ways. On the basis of your comprehensive studies (four monumental years of study, I believe you said), you have concluded that God is "unjust" for presuming to judge someone as intellectually honest as yourself.
So the Just God of the Bible does not exist, or certainly does not exist as described in the Bible? But you still want to talk about what is just and what is unjust? What if my concept of justice is diametrically opposed to yours? Who will decide between thee and me? As Einstein postulated in his Special Theory of Relativity: a finite point without an infinite reference point is meaningless.
Sorry, but you cannot appeal to an objective sense of justice which can only be rooted in God, to claim that God is unjust.
As for your smug dismissal of the crude "myths" of the "illiterate" Israelites, and acceptance of the absolute, unquestionable authority of evolutionary theory, I would once again cite a greater Truth:
"For since the creation of the world His invisible attributes, His eternal power and divine nature, have been clearly seen, being understood through what has been made, so that they are without excuse." Romans 1:19-21