If God is all-powerful, He need not have made Man at all. Or He could have made a man who would be strong enough to resist temptation. Or He could have made a man who was incapable of evil.
If the All-powerful God made a man, knowing that man would succumb to the test to which God meant to subject him, surely God could not justly blame the man for being no better than God had made him.
If God had never made Man, then Man never could have succumbed to temptation. God made Man of His own divine choice, and made him to His own divine desire.
How, then, could God blame Man for anything Man did?
God was responsible for Man's existence, for God made him. If God had not made him, Man could never have been, and could never have acted. Therefore all that Man did was the result of God's creation of Man.
All man's acts were the effects of which his creation was the cause: and God was responsible for the cause, and therefore God was responsible for the effects.
Man did not make himself. Man could not, before he existed, have asked God to make him. Man could not advise nor control God so as to influence his own nature. Man could only be what God caused him to be, and do what God enabled or compelled him to do.
Man might justly say to God: "I did not ask to be created. I did not ask to be sent into this world. I had no power to select or mould my nature. I am what You made me. I am where You put me. You knew when You made me how I should act. If You wished me to act otherwise, why did You not make me differently? If I have displeased You, I was fore-ordained to displease You. I was fore-ordained by You to be and to do what I am and have done. Is it my fault that You fore-ordained me to be and to do thus?"
Christians say a man has a will to choose. So he has. But that is only saying that one human thought will outweigh another. A man thinks with his brain: his brain was made by God.
A tall man can reach higher than a short man. It is not the fault of the short man that he is outreached: he did not fix his own height.