I agree with a lot of what's been said, but...
It's not so easy as just 'stopping breeding for a few years.' The breed I own isn't mentally mature until two or three. The latest age for a first litter is generally reckoned to be five. So you only have a couple of years in which to breed a first litter from a maiden bitch.
I have an intact bitch. I was considering breeding her but for various reasons (nothing to do with the insane puppy market) I decided against and I'm waiting now to have her spayed. However, if I had decided to breed her, it would have had to be this year or, at the absolute latest, with an increased risk to her and any litter she had, next year.
Then I'd have had the worry of finding good homes for the puppies. I'd have kept one (that would have been the main impulse behind the breeding). If any had gone to people I knew, they'd have gone for something close to pre-lockdown prices. The others? It would have been a tough call, because I would not have wanted to sell a puppy for a grand, only to have the new owner sell it on for an immediate profit to someone I did not know. I would have vetted purchasers, but I know enough, from people I know who breed, that this isn't foolproof.
So as a first-time breeder, who had had her bitch hip-scored and used a health-tested stud, I bloody well hope I wouldn't have been labelled a 'greeder' because of when I'd bred a bitch I'd been considering breeding since she was a puppy.
I suppose that what I'm saying is that while a lot of people are cashing in on the family pet, not everyone currently advertising puppies is doing that.