@23PissOffAvenueWF
‘They’re just mongrels’ is this thread’s ‘cancel the cheque’ isn’t it?!
There’s a difference between ‘mongrels’ and ‘cross-breeds’.
A ‘mongrel’ means the breeds are not identifiable.
With cross-breeds, you know which breeds they are, and the breeds have been specifically selected.
I have no skin in the game - we have a pure-bred Labrador.
Yes, I'm not sure why people don't understand this.
Many purebred dogs that we know today started out as deliberate crosses, where the breeder was trying to combine attributes from two different type of dog. Or more than two dogs may have been included in the breeding program. The point is, it's deliberate, and you know the ingredients, more or less.
A mongrel tends to imply non-deliberate breedings, or a dog where the background seems to be mixd but unknown. Often there could be all kinds of breeds.
I have two dogs. One is Chesapeake bay Retriever - a purebred - their origins are two dogs of somewhat unclear origin and local dogs of various types, bred together with the goal of producing a good cold water retriever for commercial use.
My other dog is a mutt - an accidental breeding. The mother was a purebred Australian Cattle dog, a breed developed by crossing various dogs used for cattle work and also dingos. The father at least part Bernese Mountain Dog, a dog descended from the Roman mastiff.
"Purebred dogs" as we understand the idea have only existed for about 150 years. All breeds are mixes of all kinds of types of dogs, where there was deliberate choice it was typically about useful qualities and type of work they were good for. It's almost impossible to define a deliberate crossbreed against a purebred dog unless you want to somehow imbue the KC with the power to make every decision about every dog everywhere.