Why would this be any different than when animal shelters insist a new adopter spay or neuter their new pet?
The animal shelters exist because there are so many unwanted dogs that are in need of homes. Most of those dogs exist because the parents weren’t spayed and neutered, and “accidents” happen, leading to more unwanted dogs.
So the animal shelters, in a position to do something which will prevent more unwanted dogs, insist that you fix your new pet. Do you think they are wrong to have that policy?
I would think most good breeders also realize there are too many dogs in need of homes as it is. So with the the dogs they don’t feel are good enough to show or breed, they want to make sure those dogs find good homes, but won’t be adding to the problem of dog overpopulation.
They are in a position to pick and choose who gets to have the dogs they breed. So I think they are being responsible by only selling to people who agree to spay and neuter their dogs. In the long run, that policy does reduce the number of unwanted dogs. And that is a good policy considering how many unwanted dogs there are.
I might agree with you if there was a dog shortage. But that isn’t a problem. So I see nothing wrong with them doing what animal shelters do, and wanting to be sure they aren’t adding to the problem.
Going another direction, take your artist example. It sounds like you feel the artist is justified in selling you something, on the condition that you don’t reproduce it. I think it is well understood that the artist could suffer financially if he was not able to retain the reproduction rights. So the breeders of dogs could make a similar case. They have invested time and energy to produce what they hope will be the perfect dog. If someone else was to take the sibling of a champion and breed them, advertising the great bloodlines and success of the sibling, trying to capitalize on all that went into to produce that champion, I can understand why the breeder would not feel that was fair. I think they have a right to not let that happen.
I work with a charity that takes retired race horses off the track, and transitions them into new careers. When an owner or trainer donates a horse to our program, they want us to promise that we won’t resell the horse to someone that will race the horse. Well technically, once they give us the papers on the horse, we could turn around and sell the horse to race. Nothing stops us from doing that. Nothing except that it would be unethical to agree to something, then not follow through, just because the other side has no recourse if we break our word.
So I see what the guy you bought your dog from as doing doing something similar. Just because the contract couldn’t be enforced, doesn’t mean he is not wrong to not abide by it. The breeders had their reasons for only intending to sell their dogs to someone who would agree to the conditions. The breeders might feel that by insisting the dog be fixed, that they are not contributing to the problem of too many unwanted dogs. They may feel that by insisting the dog be fixed that they are protecting their own investment, not wanting others to have “copies” of their champions, that could be reproduced for a profit.
So to me it doesn’t matter why a breeder will only sell to people who are willing to meet certain conditions. And it doesn’t matter whether those conditions can technically be enforced. What matters is what the two parties agree to, and whether or not both parties live up to their agreement.