Someone who breeds dogs to sell as pets, who doesn't show, are, in fact, the definition for backyard breeders. With all the basenjis in rescue thanks to puppymills and byb breeders, I beg to differ that "there is nothing wrong with that." From my point of view, there is EVERYTHING wrong with that.
If your dogs are Fanconi tested, chd, heart, thyroid, CERF... not just one but ALL the dogs you breed, and for generations back, then I'd say not horrible. But frankly, I'd rather give MY money to a breeder who is doing it to create the healthiest AND toward breed standard, willing to show and do other work (obedience, agility, lure coursing etc) to keep their dogs in working condition.
So we'll have to disagree on whether backyard breeding to make/sell pets is irresponsible.