The Disagreement Between the People of the Sunnah and the Mu'tazilah

Question:
He also asks: Is the real disagreement between the people of the Sunnah and the Mu'tazilah in only one issue? And did you say that? And what is this issue? Only?

Answer:
The disagreement between the people of the Sunnah and the Mu'tazilah is in many issues, the most important of which is the source of their creed. The Mu'tazilah do not receive their creed from the Book and the Sunnah, but rather from 'ilm al-kalam (theology), the rules of logic and debate. They do not argue with verses or hadiths, but rather with logical rules and 'ilm al-kalam. The people of the Sunnah take their creed from the Book of Allah, from the Sunnah of the Messenger of Allah (peace and blessings be upon him), and from the guidance of the righteous Salaf.
The people of the Sunnah believe in the names and attributes of Allah that came in the Book and the Sunnah, as befits Allah, and they affirm them, meaning they consider them real. They deny the names and attributes of Allah (Exalted and Majestic is He) and negate Him from His names and attributes.
The people of the Sunnah affirm divine decree and destiny, which is a pillar of faith. Belief in divine decree and destiny is a pillar of the six pillars of faith. The Mu'tazilah do not believe in divine decree and destiny; they deny divine decree and destiny and say that the servant creates his own action, and that Allah did not predestine faith, disbelief, or actions, but rather he is independent of Himself. How can the Mu'tazilah agree with the people of the Sunnah in the face of these major contradictions?