Willing (mashīʾah) and approval (riḍā) are not the same. Allah has granted His servants choice, but He approves of good and does not approve disbelief and disobedience.
وَلَا يَرْضَى لِعِبَادِهِ الْكُفْرَ
He does not approve disbelief for His servants. (Az-Zumar 39:7)
That a sinful act occurs within the divine will does not mean Allah is pleased with that sin.