We have big box stores for pets.
We have semi trucks burning diesel to bring pet food and pet supplies to all parts of the world.
We devote some amount of farm land and livestock to feeding those pets.
It’s interesting when people suggest to reduce global human population but I have never heard anyone suggest to reduce pet populations as a method for combating climate change or for simply reducing resource usage.
The worldwide dog population is estimated to be 900 million.
There are 600 million to 1 billion cats living in the world today.
We don’t need birth caps or forced sterilization or any of that. We need comprehensive sexual health education and universal access to all birth control methods including abortion. Imagine a society where the only babies born were ones that were planned for and wanted.
As for the pet thing… I’d love to see legislation that prevented breeding for profit.
If you want pet breeds you need to breed them.
Some people do actually still need a working dog as well.
Do puppymills still exist? Somehow targeting that explicitly would probably be good.