On the one hand, people are (rightly) outraged at the number of puppies bulk-bred in actual puppy farms where there are 3 or 4 litters on the ground at once and the dams and sires barely see the light of day.
On the other, people who want to breed their pet to produce other pets are demonised.
People will get dogs from somewhere. Not everyone is equipped to take in a lurcher from a coursing bust or an under-socialised bull breed or cockapoo with serious resource guarding issues, which - when you read their descriptions - are the issues with lots of dogs in rescue. Hence all the ones where it says, 'has to be walked muzzled and on a lead', 'must be the only dog' and 'adult only home'. Not all, but many.
And many people also are completely unsuited to providing homes for working-line dogs (witness the number of batshit working-line spaniels that feature in threads on here started by owners who are at the end of their rope). I have working-line dogs. They are a huge commitment.
That leaves show breeders. Jesus. Yes, some of them do everything they can to keep COI down and not breed to the extremes, but a lot of them I'd not trust to run a whelk stall - look at the changes in the morphology of eg GSDs over the last 30-50 years, entirely driven by the bloody show ring. Added to that, there aren't enough of them to supply the market.
So, we get puppy farms and dogs imported from Europe, including from some very sketchy rescues.
OP, I do think you're getting a hard time. That being said, I would test for HD, and I'd also find out what breeds the two of them share. I'd then make sure that at least one of the dogs, either sire or dam, is tested for the main genetic recessive diseases that affect those breeds. And have a proper puppy contract in place, and be prepared for all eventualities.