Ah, thanks for pointing it out. Just to clarify, you're confounding the physical or material, in which one couldn't possibly be His child as Surah al-Ikhlas mentions, with the spiritual dimension that comprises our true nature. 'children' in my reply was of the latter sense. where the human essence is equal, part of and destined to return to Him. I'm assuming you misunderstand rather than purposely inventing misconstrued meanings just to derail the positivity of this thread.
You may disagree, but my belief remains that our non biological essence is solely the part and property of Allah (swt), as our true 'Father' and the only Truth. If this contradicts your understanding of Islam, then I can pray for you and ask that you to get help in understanding Quran e Majeed.
If it is the concept of separating materiality from consciousness that has you flustered, then I'd also recommend delving into Allama Iqbal's discussion of the human experience or 'Reality' being spiritual, rationally imbued in its nature, as detailedly set out in
The Reconstruction of Religious Thought in Islam.
As a side note, please continue throwing around declarations of who does and doesn't have proper knowledge of our deen. It helps clarify a lot. I'd rather not take this thread any further of topic.