Praise be to Allah, and may peace and blessings be upon the Messenger of Allah. To proceed:
This statement is false when stated without qualification, because the will of people is not the same as the will of Allah that He loves and approves of in terms of religious law. Allah تعالى sent the messengers, revealed the scriptures, and prescribed laws, commands, and prohibitions so that people would follow His law, not so that their desires and wishes would become the source of judgment and legislation.
The polytheists used divine will as an argument for their falsehood, saying: “If Allah had willed, we would not have associated partners with Him, nor would our fathers have done so, nor would we have prohibited anything.” [Al-An'am: 148] Allah refuted them, demonstrating that the occurrence of something by Allah's universal will does not mean that He loves it or approves of it according to religious law.
People differ in their wills and desires. Some may choose the truth, while other groups may choose disbelief, corruption, injustice, or moral degradation. Therefore, it is not correct to say that everything people want is part of the will of Allah that He has commanded and approved.
It is obligatory that the will of the people be subject to the law of Allah, and that they refer for judgment to His Book and the Sunnah of His Messenger ﷺ, rather than making their desires and will an equal counterpart to the judgment and legislation of Allah.
Accordingly, it is more precise to say: “Whatever Allah wills to occur in the universe will occur, but not everything that occurs or that people choose is necessarily beloved to Him or commanded by Him according to religious law.” There is therefore a distinction between the universal, divinely decreed will and the religious, legislative will.
And Allah تعالى knows best.