I remember a little spiel I had an NPC deliver back in 3rd edition on the subject of "Ghoul's Rights" (or those of HMHVV infected at large).
He was an MIT&T Biologist (specializing in Awakened/Para-biology) speaking before the UCAS Congress.
I've had to paraphrase it, as the original document with my notes has been lost to the wiles of time (and a broken thumb drive).
HMHVV by its nature is self-terminating in the long run.
If it spreads too fast (and given how overtly virulent it is, that is entirely possible) it will kills off its food source through two self-compounding vectors (consumption OR conversion).
Ignoring issues of ethics and morality for a moment, for both infected AND non-infected "food"...
Yes, intelligent non-feral Infected can "cattle ranch" meta-humans to sustain themselves (Asamondo does this).
However, the rate or HMHVV producing non-feral (sapient and sane) Infected is INCREDIBLY low; creating far more mindless monsters than productive ones.
Extrapolated to a large scale (space and time) cattle ranching people, even our "undesirables", is simply not a viable solution by sheer population vectors.
Fact is, the Infected don't age and are effectively immune to all other natural illness and disease. In practical terms, the only time Infected suffer population loss is death by starvation or trauma.
Since humane treatment of Infected obviously prohibits both, this means over time the Infected population can only grow. A food supply crisis is an ever-growing problem by default.
What this means, is that an uncontained HMHVV epidemic will occur, either by chance exposure (every additional infected poses an increased risk to all non-infected) or as an outbreak as the Infected's demand for food grows beyond supply's capacity. This disaster is inevitable occur regardless of whether it's on metahumanity's terms, or that of the sapient-infected.
Empirically speaking, culling must occur to keep the infected population down to sustainable; again, I remind that there exists no way to accomplish this in a "humanitarian" manner (or one that violates their "rights").
In any case, the outcome for such a scenario remains clear: Metahumanity dies, and then the Infected die shortly thereafter from starvation.
(This revelation raises an interesting and poetic irony: The Asamondo Infected State only came into being because metahumanity killed off enough Feral Infected to allow significant numbers of non-Ferals to congregate and organize. Otherwise, there would simply be too much competition for food between ferals and non-ferals)
Returning to the realm of morality and ethics now, I hope it's clear now that any sort of advocacy for granting and preserving the rights of Infected (even the intelligent ones) requires a powerful supplemental justification.
Noble intent is a start but clearly insufficient on its own, in light of what we know about HMHVV. (How does it go? "The road to hell is paved with noble intentions")
So now I ask: What do we really get out of giving Infected "fair treatment"? The benefits of their unique culture? Culture is a fine thing, but rather useless to a dead (or dying) species.
Barring a cure or other new control mechanism, mutual annihilation is inevitable given enough time. So all this would accomplish is threatening the rest of meta-humanity with a ticking bomb for no good reason.
As terrible as it sounds on the surface, the truth is that the most moral and ultimately humane decision is to cull the Infected rather than letting the problem grow greater with time.
I urge the people here to remember that few (if any) Infected wanted to be made into flesh eating monsters. We owe it to them and the memory of their humanity why we must carry such out such a grim task.
We do not make the victims by culling them, the Infected were victims of something far more insidious and malignant before we ever began.
And I say this because every victim of HMHVV going forward, be they feral, sapient-infected, or mere "food", is one more who could have been saved if action had been taken before.