So if we are going to understand the trees in the Garden were in fact all knowledge trees, that they were metaphors for types of knowledge since you have one specifically called the tree of the knowledge of good and evil by contrast to the other trees, (again I stress it does not say the "tree of knowledge", and leave it at that, but "knowledge of good and evil"), then the question is calling it the tree of the knowledge of "everything" what is meant? Again, I don't think so. I think this is a bit of a force-fit as you saying "all things are subject to good and evil". Are they? What is the "knowledge of good and evil", but a dualistic understanding, the world of opposites?
If you take a high-level overview of what the myth of Adam and Even in the Garden is saying at its core, it is about the awakening of human consciousness to the separate self. It is the myth of Paradise Lost, a fall from grace into separation, death, and suffering. It's a common theme in many culture's origin myths. The theme is about the existential condition of man, longing to reunite with Source, to be freed from death and suffering. So in light of that, when it speaks about eating from that tree, it speaks about a choice to discover ourselves in our own self-knowledge. A dualistic world is a world of suffering. It is the world of "other", of "good and evil". The Upanishads say, "Where there is other, there is fear".
This knowledge is a specific knowledge, not knowledge of "everything". In fact "knowledge of everything" would in fact be omniscience. But omniscience is not a knowledge of facts and figures and all thoughts and ideas. A knowledge of everything is exactly what they had previously in the myth! Omniscience is knowing the true nature of everything. It is the mind of God. I can experience omniscience, in that you see beyond the illusion of separation, the strictly dualistic view of reality held exclusively in conscious awareness. Omniscience sees the truth of the nature of reality, that emptiness is none other than form, and form is none other than emptiness. It is an awareness of Reality, not reading thoughts in the past and future.
Therefore, I liken the myth of eating the fruit from the tree of the knowledge of good and evil to be like the Hindu's concept of Lila, where Spirit throws itself out into the world, into divine ignorance, all the way down the great chain of being, from Spirit, to soul, to mind, to body, to matter until it remembers itself no more. And then it starts the climb back up to knowing itself through form, until it finally awakens to Itself and says, "Oh there you are!", and starts the whole game over again. Eating the fruit of the knowledge of good and evil, is as I said, casting oneself out of Unity as God, into forgetfulness, through which we experience the suffering of aloneness and the desire to reunite with God.
Read the myth of Adam and Eve in light of this, and tell me that doesn't make more sense?
Now, I could go into another way read the myth of Eden, that goes slightly the other way. That what was experienced was an awakening to the pain of separation in the way a child first opens his eyes and realizes he is separate from Mother, whom he was fused with in divine slumber, the Oceanic nothingness of infantile bliss, and the eating the fruit of the knowledge of good and evil is awakening to the differentiated self, and the rest of the story is about the ascent to self-knowledge and ultimate unity with God through knowledge of self. Adam and Eve were not thrown out of Eden, the stood up and walked out because they wanted to know God through self-knowledge, and God's warning to them was merely telling them what would happen if they made that choice. Actually I think the two go together.
What do you think?
I think you're thinking too narrowly. The moral sense is of course relative, not absolute. I think it may help you to think in terms of the relationship between the relative and the Absolute. The Absolute is not just the "right" relative point of view. It is not itself another point of view, but transcends relative points of view, not superimposes a great big one on the little ones. To have the knowledge of good and evil as God does would means God is aware of the whole game. Awakening to that is painful. But then release from the world of suffering means you now cannot go back into the mother's womb and sleep in divine ignorance anymore. The way back is barred by death. You can only now move forward, through life, with the goal of awakening and finding release back into the Divine, as a fully awakened soul.
The whole thing is a metaphor for our existential condition, our agnst, and our desire to return to God. But salvation is not to escape the world of suffering, but to awaken to ourselves in the world, in nonduality. "I and my Father are One". It is to eat of the trees in the Garden, trees of the knowledge of Reality itself.
Which is an opportunity to learn.