Dogs are little more than farm animals, in the sense that we're farming them for companionship. They might be our friends now that we have killed all the ones that would defy our commands.

Look at any wild animal, do they want to be owned, do they want to be put on a leash? Of course not. Animals want to be free like any other living being, but just like cows, dogs would not survive on their own because we have artificially selected them. Imagine aliens capturing humans, breeding them in captivity until they are docile little creatures that cannot survive on their own. It's easy to feel sorry for farm animals because we eat them, but in a way people who love pets are not any better than the farmer, despite the culture thinking otherwise.