while I personally wouldn't breed from any animal of mine, I do think it is incredibly arrogant to assume that A, only a (reputable, which appear to be in the minority) breeder and (reputable, which appear to be in the minority) rescue can possibly know how to rehome a dog responsibly, and B, that anyone who gets a dog from anywhere other than A is a bad dog owner who will end up dumping it.
Would I buy a puppy from the services on the m4 - not a chance. But would I take one from a neighbour whose dog had had puppies, knowing that her dogs are well loved, well cared for, that although their existance was an unfortunate series of events where perhaps a female had got out while in season (for instance), that she was going to find good, loveing homes for them and get the bitch spayed asap? yes probably. And in truth, even the person who takes the puppy from the breeder who is prepared to deliver it to them on the Bristol junction isn't necessarily a bad owner. Perhaps a little misguided because giving money to these people does fuel the supply of such puppies, but often people who buy them have the right intentions - to give them good, loving homes. You don't need a rescue or a breeder to tell you whether or not you can be a good owner. And ultimately, these puppies have to go somewhere. I wouldn't want one because I wouldn't want to give money to someone who overbreeds their dogs and thus encourage them to continue doing so. But if I then walk away from a litter of eight week old puppies, what do you think happens to them? Even if you report the breeder to the RSPCA there are no guarantees. They don't simply walk in and shut down these breeders - it just doesn't happen like that. So the puppies, who are already in existance, end up with an even more miserable life. Which is why so many people do actually decide to bite the bullet and take them on regardless of the risks. It's simply not as black and white as people on here like to make out.
And just because someone answers the questions a breeder asks doesn't make them any less likely to end up dumping the dog on the motorway when the going gets tough, or leave it shut up all day every day while they go out to work having told the breeder they intend to hire a dog walker/be at home for the majority of the time. Once a breeder (or rescue for that matter) hands over a puppy you have no idea where it could end up.
And who decides what is and what isn't a reputable breeder and what makes for good and bad trates?
Incidentally, the labradoodle came into existence because they were considered a good match as guide dogs for those owners who have allergies. The result was a bit of a disaster, as they were crap as guide dogs, and after that they were presumably rehomed and became a bit of a designer dog. No-one faulted their being bred for guide dogs, yet somehow it's wrong to have one as a pet? Similarly with cockerpoo's - hearing dogs breed them and that's ok because ... for whatever reason they make good hearing dogs, but want one as a pet and that is somehow wrong? Surely it's either wrong, or it isn't.
And for those saying that it's wrong to breed cockerpoo's/labradoodles etc - why? Someone is going to breed them. whether people like it or not there is a market for these dogs. Surely it is better that there be people out there who genuinely care about these animals who will breed them responsibly?
Guide dogs breed their own dogs for inteligence/trainability/suitability as guide dogs. The pass rate for guide dogs bred puppies vs donated puppies is considerably higher - about 90% vs about 50% iirc. Yet it's got to a point now where more and more guide dogs are being withdrawn earlier due to behavioral problems, and a vast amount of the argument behind that is inbreeding - the lines have become so inbred now that there are more and more problems. There are very few of the health problems, but there are a lot more of the behavioral problems. One of the most common guide dogs is the lab retriever cross. Yet of all the dogs I know who have been retired early due to behavior, they have all been crosses. They tend to be either incredibly stubbern or highly strung. And yet there aren't any calls for guide dogs to stop breeding their own puppies because of what they're doing to the lines, why is this? Because they're working dogs and that somehow makes it ok?