It seems to me that Adam and Eve's ignorance in right and wrong was the reason why they disobeyed god. According to the bible, isn't the very act of disobedience considered to be wrong, a sin and an act of "evil?" So responsibility wouldn't fall on them because they didn't know that disobeying god was wrong.
Have you read Genesis at all? I mean really read it, not just skimmed over the words? There is a lot of information between the lines if your mind is not closed.....and if you use other scripture to fill in the blanks.
Actually, if you read the Genesis account, a lot of the issues that people (who are are ignorant of the Bible's teachings) raise, are settled.....the trouble is, flawed humans think that they can judge their Creator.....its a nice illusion.....but they will find out soon enough what "sovereignty" means.
It amuses me to no end that people will support their governments in their military actions but never criticize their treatment of their enlisted people who may disobey a command. If you step out of line in the military, what happens? That is what sovereignty means. A sovereign is your ruler and lawmaker.....you answer to him (them) for any disobedience to stated laws. Penalties apply that are well known before any disobedience takes place. What is unfair about that?
But if being technical, "evil" intruded paradise when Adam was obeying that command. The serpent did lie to Eve before she ate the fruit, did it not?
As their Sovereign, God had the right to set the limits of their tenancy here. He created this home for them......perfect in every way...he also created their bodies, which were marvelous in their design and construction and amazing in their capacity for knowledge and planning ability. As the only creatures on earth who were made in the image of their Creator, having his moral capacity and attributes, they were assigned as caretakers of God's Earth. They were responsible to their 'Landlord' to take care of his property and all the creatures who would share life with him here.
It is of interest that the first rebel was not human. This wannabe 'god' saw an opportunity to fulfill an unnatural ambition of his own, using the only creatures who were intelligent enough to worship him as a god. By hijacking the human race, he created a situation that needed a long term strategy to resolve. All of God's intelligent creation were involved in this, so at the end of the day, every one of them will have proved either their loyalty to God or their loyalty to his adversary. Each will 'reap what they have sown'.
Had God ever given them reason to distrust him? Had he ever demonstrated mean -spiritedness towards them? All they needed to do was obey him, and trust that he always had their best interests at heart....they failed to do that, because someone told them a convincing lie......Instead of wiping them out and starting again, and perhaps having the same thing happen, God used the rebellion of his angelic sons and his human children to establish the pros and cons of independence from God. He would allow them all to make their decisions and reap the consequences of making their own ill considered decisions.
So far all we have experienced is trouble....we have never lived in the world that God first created for his children....but in our hearts, we desire it. Paradise locations all over the world are sought out...even for a short vacation because we all know that these are the conditions we were meant to live in. It is programmed into us.......God has promised to bring us back to paradise. He is the only one who delivers on his promises. (Isaiah 55:11)