Absolutely not!
When you take a working breed, and I’m not just referring to border collies here, and you try and take out the working instinct, in my opinion you change the character of the dog, the confirmation of the dog and can introduce behavioural problems that weren’t there before.
For example, German Shepherd dogs have become very neurotic overall and fearful when they used to be a very level headed, stable breed.
When you compare German Shepherd dogs working with the police to German Shepherds bred for show the difference is looks is stark and depressing.
In Golden Retrievers and Cocker spaniels severe resource guarding is a very well known problem and it’s more commonly seen in the show lines.
Again, when you compare show line and working line the appearance is different enough for some people to not even recognise them as the correct breed.
With collies specifically, they are, thank god, still largely bred for working but you can already see the looks divide appearing.
Show border collies have a coat that I would argue is too dense and long to be suitable for working.
It isn’t a coincidence that a fair number of working border collies are smooth coated.
The shows are more heavy set too, shorter legged, more blocky shaped heads.
Epilepsy is a problem as mentioned, there is another disease, Neuronal Ceroid lipofucsinosis (I don’t think spelt correctly though) that is almost exclusively seen only in show bred border collies.
No doubt because when you breed to a strict ‘look’ and use a small number of top winning dogs to father hundreds, if not thousands of pups you decrease the gene pool and introduce disease.
Working line dogs often benefit from much larger gene pools, it’s not a coincidence that dogs like working border collies, working jack russels and working lurchers are amongst the healthiest breeds.
With the exception of dog fighting breeds, I don’t believe working dogs should ever be intentionally bred with a view to losing their working ability.
It is integral to what makes that breed.
If you don’t feel you can cope with the expected traits of a particular breed then pick a different one, don’t try and breed out their working ability.
The Kennel Club is bad news for dogs.
No valuable working dog was ever improved by the actions of the Kennel Club.
Not in looks, not in temperament and not in health.