وَلَوْ شَاءَ اللَّهُ مَا أَشْرَكُوا وَمَا جَعَلْنَاكَ عَلَيْهِمْ حَفِيظًا وَمَا أَنتَ عَلَيْهِم بِوَكِيلٍ
Had Allah wished they would not have ascribed partners [to Him]. We have not made you a caretaker for them, nor is it your duty to watch over them.
Agha Ali Puya Commentary
Commentary on Quran 6:107
[Pooya/Ali Commentary 6:107] Allah's plan is to let man use his will and reason to find out the truth, follow it, and preserve it. Allah can destroy evil, but He has given complete freedom to man to distinguish between right and wrong. The Holy Prophet was sent only to preach, to guide and show the right path.