My family is full of animal lovers. We have always had several cats and dogs at a time, that we all rescued from the pound or off of the streets. These animals have come from abused homes, have lost limbs, have been covered in mud and fleas/ticks, and have seen the worst of the worst. This is why we always have believed in adopting our animals, not buying them from breeders. We don't want our animals if they are only 100% pure bred, we do not care about that, we only care about loving them and giving them a better life full of love and adventure. But it is also important to remember that many dogs that are in pet stores, come from puppy mills, and have lived a terrible life in inhumane and cramped quarters, so saving the lives of these dogs are equally important. What isn't important, is how pure breed your dog is. Honestly, all dogs just want love and happiness from their owners, and this is what they all deserve.
All animals, whether they are cats, dogs, horses, goats, rabbits, or possibly even fish, just want a loving home to live in and this is what all humans should do for these amazing and caring animals that roam the earth. Why does it matter if your dog is 100% of a certain breed or a mutt when you could love either of them unconditionally? Think of how many animals could be off the streets or out of mills and into warm and loving homes if everyone were to adopt and not shop.