Tawhid (monotheism) and rejecting false gods

أَرَءَيْتَ مَنِ ٱتَّخَذَ إِلَـٰهَهُۥ هَوَىٰهُ أَفَأَنتَ تَكُونُ عَلَيْهِ وَكِيلًا

Have you seen the one who takes as his god his own desire? Then would you be responsible for him?