1. Daryl himself is a chimera right now. not a superhuman, not a monster, not a rebis.
2. Superhumans are not monsters. Superhumans are explicitly humans, whose HUMAN body adapts to the monster magical energy. Fighting against being turned into a monster. And as a result the human body becomes superhuman.
So if he was a superhuman then rebis DNA info is not needed. But he is actually a chimera.
3. The main issue with such a revision is that monsters and superhumans both have a supernatural aspect. They go over it when discussing MC upgrades. He can't just take upgrades from other monsters, and even if he could it would just make him weaker.
All magitech explicitly relies on supernatural energy harvested from monsters because of the supernatural aspect.
To take away a superhumans power is not a question of reworking their body. It is reworking their soul to remove the magical energy that they produce and use. and said magical energy is also both your stamina and lifeforce. Running out of it is fatal
1. You're indeed correct, thank you for reminding me of what he is properly.
2. While superhumans are indeed not monsters each superhuman is unique in the fact that not only do they all have different parents (or at least similar powers in the case of Ella/MC) or (Jake/Demi) what sets them apart is that each thing that granted them their power isn't the same.
More or less I'm under the belief that despite all superhumans falling under the same genus (which we were taught about in one of the classes) that in itself isn't entirely correct, each superhuman would fall under their own subspecies of the main genus. For example MC's parent(s) aren't the same as Alice's.
The only reason for my belief in this is the conversation with Deryl when he talks about the millions of years of evolution MC's body undertook when getting his powers while the process is similar for other superhumans they have to be fundamentally different just based off each parent being different and granting different things that allow them to adapt for XYZ more than their competitors. Although I will admit thats just purely speculation on my part (in regards to each superhuman while being apart of the superhuman genus each falling under their own species).
It makes us inherently different and the same would go for the other superhumans whom had different parents. But that's just my guess/assumption as they are referred to as a 'species' one can draw the assumption there are also subspecies of the primary (or rather common) ancestor genus.
I'm going to use a real life example:
Humans are apart of the Homo Genus which includes various other subspecies (referred to as hominin) each species while sharing a common ancestor and being closely related (enough to breed together at least and shared similar physical characteristics) all had their own unique adaptations that allowed them to thrive in their environments like how Homo neanderthalensis had muscular bodies and physically stronger than their close cousin Homo Sapiens (Thats us) while we had our own set of advantageous adaptations that allowed us to soar against our competitors (the other hominin subspecies).
My apologies if I got any of the naming or classifications wrong (its been a bit since I last cracked open a biology book)
3. I do apologize for not making this more clear but I wasn't trying to refer to MC 'consuming' the monsters to gain their abilities (which would make him weaker as you said) but rather him gaining their memories which would allow him to replicate their structure (like his giant scythe)
Deryl talks about this with the MC in regards to them joining together, in Deryl's case recreate a monster's powers while MC takes their memories to gain their structure.
MC during the latest update has the chance via the shopkeep to consume up to 2 monster parts (their memories to be exact) and learn about them (same in regards to the monster heart Xanthe gives him as well I believe).
I will agree with you though that the MC most likely cannot take away the power(s) of another superhuman (as you said its fatal due to supernatural fun stuff).
