Do you relatively equate this to how we treat other animals right now, killing the planet's livable ecosystems while exclusively creating living spaces and amenities for these domestic pets and treating the nature they come from as second class? Tens to hundreds of thousands of unique species and subspecies go extinct at previously unrecorded rates, but selective breeding of vanity traits in pet animals remains a common past time. There's clearly an attachment to these animals and breeds that keeps them in our conscious above others to consider it worthwhile to hold them in public reverence in a way that can still be described as companionship.
We've flipped the needle on adapting them for survival companionship to (essentially) slaved ownership with the aftereffects like you've mentioned, but I think zooming in on the scale of an individual societies' treatment won't generally be favorable. We barely even treat our own species with a level of achievable compassion for anyone deemed undesirable or are a lower class, the betrayal starts earlier than our treatment towards dogs.