Of course I am talking about domesticated dogs. If I wasn't, we wouldn't be talking about "pets" would we? And while your dog may be able to acquire certain wildlife on its own now, if people were not around then larger predators i.e. wolves would tend to move in and push the dogs out of that prey niche. The songbird and rat niche is pretty much open for cats.
Also, you're just being crude when you say "you can argue that, but you would be wrong." It's dismissive and childish, and that phrase is never applicable because people only use it when they refuse to recognize the other point of view as legitimate, meaning we could argue, but there wouldn't be a point because you won't listen anyway.
Also, this was a cat-centric conversation. If you are going to hate on cats, please excuse yourself from the thread.
I have a dog and foster cats, so I know about and love both. Just don't be so uncouth.