And yes. I think slaving/caging an animal is brutal. But many animals will happily have your company.
I was visiting Bay Area a year before COVID and stopped by in Berkeley for something, iirc was getting brunch with friends. The first thing I see after parking is a full street closure and a large crowd that looked like it was marching down the street, with people holding banners, drumming, chanting slogans, etc.
Out of curiosity, I decided to check what it was about. As you have probably guessed by now, "pet ownership is slavery" was the theme (one of the banners in the front was saying exactly that).
I'm not saying there couldn't be I don't know, a pet owner who took them in off the street or from a shelter, nursed them back to health, and are lifetime companions in a consensual idealised relationship, with the ownership mostly being a legal technicality. Yet there is an ethically dubious side to pet ownership which I could imagine getting the entire institution framed in a negative light in the distant future.
I imagine in the year 3000 there might be a future where schoolchildren will be shown holograms of rendering plants and told by the teacher "And this is what they fed the animals" and then a Labrador Retriever will have an AI write an essay which states that "the ownership or consumption of any animals, is fundamentally a crime against animal rights".