system
Given the following post, respond as if you're commenting on Reddit:
human
Ethics of Pugs

Someone posted an interesting proposition

>   Pugs aren’t fucking cute. They’re suffering and continuing to breed them should be considered animal abuse.

Which brings us the ethical dilemma:

What is better for a species, a life of suffering or extinction?
gpt
Often, the choice is between a pet pug and a pet non-pug (eg mut), as opposed to between a pet pug and no pet at all. 

So in the former case the relevant question might be: is it better to be a pet pug or a pet mut? And other thing being equal, it's plausible that the mut will be better off given their health advantages.

If we suppose for some reason it is 'Pug or Nothing' (possible world/thought experiment  where there are no other dogs, etc), then we have to ask whether their lives are worth living. Measuring well-being in the absence of verbal report is still a tall order for present science, so it is hard to say. But, by way of analogy, we can consider whether humans with health issues believe that such issues nullify their life's worth. If not, we can extend this (with low but not negligible credence) to fellow canines.

Lately, it seems anytime one talks about well-being and doesnt mention antinatalism, someone feels the need to bring it up. So, feel free to search that term or 'benatar' for some of his objections. (On mobile, can't hyperlink)

Lastly, extinction is an odd term to use. Imagine a small population where folks were controlled so as to only reproduce with their brothers and sisters, then their brothers and sisters, and so on. The relevant question there might be: is it best to continue to control their reproduction in that manner so that we might preserve the purity of their breed? Here, it's hard to see why answering 'yes' makes any sense, unless we are essentialists of some sort about the value of the purity of that particular breed--a view that might be crudely analogous to viewing pure races as having superior value. Such a view  might make sense in a world with Targaryens, what with their dragon blood(?) and all, but it doesn't make much sense for canines and hominids.