...their (spitting) mirror image how defunct and amoral it had become.
There are probably more novels like this, I just can't think of any right now. (And, no, H.G. Wells' "The Island of Dr. Moreau" is #SciFi#Horror, neither fantasy, nor sci-fi. 😉)
But, hell yes, it does belong!
There are even several others that definitely would need to be added to this...