I think it's wrong to paint all breeders of pedigree cats with the same brush.
For sure there will be a few bad apple breeders who have seperate quarters for their queens and don't seem to realise that the kits need more handling. It's obvious who these are if you visit, and you can always walk out again!
But the majority of breeders I know are very much oriented towards the healthy development of a cat, not just how much it will earn them as a kit.
In fact compared to puppy farming, (where incontinent pups are sold at 6 weeks) cat breeders don't make any money on their 12 week, litter tarined, weaned, microchipped and vaccinated kittens, and just breed to further the lines and expand the gene pool.
IME most kitties are getting set in their ways by 10 weeks, and need a lot of handling before that.
Most pedigree breeders are fabulous at looking after their kittens and spend quality time with them. Most pedigree queens get pretty tired of their kits by 10 weeks, when the kits are eating meat, and only occasionally having milk.
You have some moggy owners who don't spay their girls, and dump them when they're pregnant.
There are bad owners all round, but my experience of or degree breeders has been overwhelmingly positive. Not so moggy owners / accidental breeders of moggies who are so irresponsible and cruel to have their little almost baby cats have kittens at six months.
I've had three moggies adopt me, and one pedigree, and when next I get a cat it will be pedigree. But then I'm very interested in a particular low allergy breed and am friends with a wonderful and conscientious breeder, so that's a no brainer for me.