Breeders are not inherently opposed to breed rescue work. Their concern is straightforward. The conscientious breeder is trying to develop an ever better representative of the breed. To do this she must breed. But to breed she must be able to sell her pups.
Rescue dogs absorb potential homes.
Moreover, since rescue dogs are typically pet store puppies, it could be argued that rescue work supports the puppy mills that supply the pet stores. Rescue work, seen from this perspective, undermines the good breeder's attempt to develop and perfect the breed. Rescue work is therefore antithetical to the development of quality Keeshonden. The rescue worker is also not inherently opposed to the breeder. These are creatures that have endured much already and now need a chance at a good life.