I'm going to try to be polite so this is what I know:
The term
"mutt" generally refers to a dog of
unknown descent. It was originally not viewed to be derogatory. Some use this term with no disrespect, while others....well let's just say NOT!
The term
crossbreed refers to puppies produced by the breeding technique of breeding known dogs of
two different purebred dog breeds for some specific reason.
There is no guarantee of good genetic health, or temperment, of any dog, purebred or otherwise, as not all damaging genes are recessive, and there are relatively few single-gene traits. Also, of course, purebred and mixed-breed dogs are equally susceptible to nongenetic ailments, such as rabies, distemper, injury, and infestation by parasites.
Some owners value a dog's pedigree as a status symbol and, therefore, have no use for mixed-breed dogs; others particularly appreciate the physical or behavioral traits of certain breeds; still others ignore pedigree and, instead, value a dog's personality and health.
Local animal shelters adopt out dogs of both purebred and mixed ancestry, emphasizing each dog's personality and suitability as a companion for each potential owner's lifestyle.
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