Hi Foxpup.
No, no eugenics.
I was playing devils advocate for a hypothetical furry world that is not one we would want to live in. I was thinking essentially a totalitarian furry world, possibly after am apocalypse. If eugenics were in force, I would have been disposed of shortly after birth because of a problem I had.
Also I was echoing what we humans currently do with pets... selective breeding, spay and neuter, etc, all in a means to make dogs more expensive and look a certain way. Which is controversial topic.
And heck yes, parvo, lepto, rabies, all easily preventive. And cheap. If you have ever seen an animal with parvo it's sad how bad it is. No excuse these days to not get shots.