Aslam O Alaikum
the two refrences you gave from Holy Quran (Surah Al-Hujraat and surah An-Nisa) are irrelevent to these question.
How could Allah give such a knowledge to a “R I J S ”. the child born after zanah is not RIJS
The Holy Prophet(P.B.U.H) said that each child borns in the nature of islam(har bacha fitrat e islam pe paida hota hy.).