DOGS HAVE BEEN DOMESTICATED SO LONG THAT THEY HAVE ADAPTED TO COOKED DIETS.
This is false! Yes, dogs were domesticated from wolves thousands of years ago, and then selectively bred by humans for desired sizes, shapes, and characteristics. However, they have NOT adapted to a cooked food diet, as evidenced by the millions of pets sitting in the waiting rooms of veterinary clinics with periodontal disease, skin diseases, cancers, organ diseases, diabetes, obesity—diseases that have strong connections to cooked and processed foods. No, a cooked diet has not been kind to our animals.
Kibble foods (which are cooked and highly processed) have only been around for the last 100 years. Evolutionary adaptations require much more time than this.
BONES ARE DANGEROUS AND HAVE NO NUTRITIONAL VALUE.
Cooked bones are quite dangerous. Cooking changes the structure of the bone, making it indigestible and easy to splinter. Raw bones rarely splinter and are fully digestible, even the collagen proteins that some people claim are "indigestible." It is mostly the by-products of the digested bone that form the bulk of a raw-fed animal's faeces.
THE BACTERIA IN RAW MEAT WILL HURT YOUR DOG.
Yes, the bacteria in raw meat might hurt your dog IF the dog already has an immunocompromised system or some underlying problem. Raw diets have also been blamed for causing things like pancreatitis and kidney disease, when in reality the underlying disease was already there and was brought to light by the change in diet. Dogs are surprisingly well-equipped to deal with bacteria. Their saliva has antibacterial properties; it contains lysozyme, an enzyme that lyses and destroys harmful bacteria. Their short digestive tract is designed to push through food and bacteria quickly without giving bacteria time to colonize. The extremely acidic environment in the gut is also a good bacteria colonization deterrent. People often point to the fact that dogs shed salmonella in their faeces (even kibble-fed dogs do this) without showing any ill effects as proof that the dog is infected with salmonella. In reality, all this proves is that the dog has effectively passed the salmonella through its system with no problems. Yes, the dog can act as a salmonella carrier, but the solution is simple—do not eat dog crap and wash your hands after picking up after your dog.
RAW MEAT WILL MAKE MY DOG BLOODTHIRSTY.
By nature the dog is a carnivorous predator. A dog that chases things (with or without killing them) is just being true to what it is: a dog. Feeding a dog meat is not going to turn a dog into some vicious animal that will attack every living thing that moves.