Wait a moment, wait a moment, wait a moment. This is just WRONG, but not morally or ethically wrong, it is BIOLOGICALLY wrong, it is factually wrong, so this shit needs to be addressed, specially considering that many <18 are reading this and they might get influenced by this, I cannot just let it go.
Incest word is tricky in the context of AWAM, because it is mainly mother/son. In this context there are 3 main problems with that relationship. First is the obvious age gap. Second is that both share almost the same chromosomes (true meaning of incest). Third is the psychological implications that set the frame of that entanglement (toxic AF).
Age gap and psychological frame are another topic, but incest, the relationship of 2 persons that share almost the same genetic material, is not prejuice, it is a factual biological problem. When those two people inbreed, the next generation instead of getting better with higher genetic quality, it gets worse, it degrades, and sometimes it gets REALLY bad. An example? EASY!
In Europe, through the high medieval era, almost all the kings and queens, after centuries of political marriages, shared almost the same genetic material. When they kept inbreeding, things got REALLY bad, and eventually this happened:
That guy is not ugly. That is the best posible picture a royal artist could respectfully paint of a man with chromosomes problems. That guy, eventhough was the king, couldnt reign, so a "valido" took the responsability, and those guy tales is what inspired George RR Martin the tales of characters like Littlefinger and Varys.
Imagine if its a problem that even kings are affected by it.
But if you want a more real world example, you have what is happening in many arab countries, where family marriages between cousins happen regulary. In those cases, they are sometimes third or forth cousin chain, and in that case the shared NDA scalates, and the degenerative condition of the kids also scalate.
If you check global IQ lvls, those arab countries are in the worst position of the whole world, but if you segment that by educated population (expecting higher IQ lvls), they are still extremely behing of equivalent educated kids from first world countries. That is how much damage cross population inbreeding gets.
So no, its not a prejuice, and the author is not helping society with this. The author is definately NOT making the world a better place. He is just milking on a taboo that should not happen.
Personally Im waiting to see what happens with this update. If Sophia goes proactive, I will close the AWAM chapter forever in my life. Life has red lines, underage toddlers and sex is one of those. I will probably consider external actions depending on how far he goes.