Dogs and Humans Have Formed Ecosystem
Dogs and humans have formed an integrated ecosystem, one that has been extraordinarily successful for dogs, when you see how they have spread throughout the world and increased in numbers beyond all other canids.
This success has occurred in part because we make breeding decisions for them.
Your decision whether or not to breed from your dog should be made on the basis of your dog's and its potential partner's inherited good health and temperament, and on your ability to ensure caring homes for the resulting litter.