What do we say to someone who justifies Adam's eating from the tree, then contradicts it with Allah's saying: "And Adam disobeyed his Lord, so he erred"?

Allah Almighty decreed for Adam to eat from the tree, out of the wisdom of sending him down to Earth for him and his descendants to live a life of servitude, as mentioned in the hadith about Adam's argument with Moses. Al-Hasan al-Basri was asked why Adam did not abstain from eating from the tree, and he replied: "He had no choice but to eat from it, for he was created for the Earth." Adam and Eve repented from their sin, which was caused by Satan, and Allah accepted their repentance. It is prohibited to discuss the errors of the prophets except with people of knowledge who are not feared to fall into disparagement. Everything that happens to a servant is decreed, but he is blamed for evil because he committed it by his own choice, and Adam's argument by destiny was concerning the calamity, not the sin.