A single example of a poorly bred German Shepherd (one of the breeds most hit by low quality breeders flooding a market with no regard for the dogs health) is not evidence that good breeders don’t exist.
Good breeders limit or don’t line breed, they import and export stock to maintain diversity, they maintain health records on all litters and their prodigy, they have breeding contracts to prevent future litters unvetted litters.
Good breeders limit or don’t line breed, they import and export stock to maintain diversity, they maintain health records on all litters and their prodigy, they have breeding contracts to prevent future litters unvetted litters.