Yes, some breeds really suffered a lot as a result of dumbass breeding practices.
This is why purebreds are often seen as unhealthy, and why many people think breeders suck.
Some DO! =o(
But it’s not like mutts are healthier…
I thought this was interesting:
https://www.instituteofcaninebiology.org/blog/the-myth-of-hybrid-vigor-in-dogsis-a-myth (basically says that purebreds are healthier because via inbreeding and careful, selective breeding, we’re able to breed out a lot of issues and health concerns).
Great Pyrenees, Caucasian/Central Asian Shepherds (actually lots of shepherds like Belgian/Malinois, Tervuren, Berger Blanc Suisse, Dutch, Kunming - which is what I’d get if I wanted a GSD, they look the same but no issues), all the ancient Irish breeds (water spaniels, wolfhounds, Kerry Beagles & Blue Terriers, Wheaten Terriers), Cairn Terriers, Beagles, Ibizan & Pharaoh Hounds, all Huskies & Malamutes, Setters, working Spaniel lines… there really are many of these I could keep going