وَمَا زَعَمَ عَبَدَةُ الْأَصْنَامِ أَنَّهُمْ بَنَاتُ اللَّهِ مُحَالٌ بَاطِلٌ
The idolaters' claim that they are God's daughters is impossible and false.
God is self-sufficient and unlike created beings. Offspring implies creaturely parentage, generation, and a shared kind; none can properly be applied to God. Calling an exalted luminous creature God's child confuses Creator and creation rather than expressing a true honor.
Angelic dignity rests in their worship, obedience, and commissioned service. Ascribing divine lineage neither adds to that dignity nor rests upon revelation.