What made people reject Prophet Muhammad (peace be upon him)?

‫أَمۡ لَمۡ یَعۡرِفُوا۟ رَسُولَهُمۡ فَهُمۡ لَهُۥ مُنكِرُونَ ‫أَمۡ یَقُولُونَ بِهِۦ جِنَّةُۢۚ بَلۡ جَاۤءَهُم بِٱلۡحَقِّ وَأَكۡثَرُهُمۡ لِلۡحَقِّ كَـٰرِهُونَ Did they not recognise their messenger and therefore they denied him?  (23:69) Or do they say, “He...