At the risk of being shot down in flames ….
May be, if that attitude is adopted by the majority of breeders, this is why puppy factories have become the norm.
The person you told “no, you won’t be getting a puppy” goes off and buys their puppy at half the price from one of those factories and breeds him or her producing more sub par puppies.
I understand that breeders do not want 'just anyone' breeding from their bloodlines but rather than disregard the person on their lack of knowledge or inability to communicate at a level they feel appropriate, it may be better to guide and assist?
Yep, homework and networking is a good idea but some people may like to have a litter of puppies to keep and work on the farm etc ... by the time they have 'networked' enough to become 'accepted' and 'allowed' to buy a puppy, their original dog has died of old age
If breeders still want control over the puppies they breed,
do not advertise them to the general public for sale. They bred it, they can't keep it or do not want to keep it because it is not up to standard but they still want to have a say over what someone who has just paid over $500 does with it?
[PS. I speak from experience in that I used to breed and show rough collies but gave it up a long time again due to the 'politics' in breeding circles and show rings].