Tony, I understand what you are trying to say but your argument is flawed.
If we had chosen to eradicate all the defective horses, right back at the beginning, we would not have the problems we have now and we would never have known what we might have hadtherefore it would never have bothered us!
I have heard this "but what if Buckeroo had been gelded" argument before....so what if he had?
It would not matter to us, now, as we would never have known what he could have done.
Eradicating all those potential mine fields of horses, right back at the beginning, would only , ever, have been a good thing, as far as I am concerned.
The whole thing would have found it's own, different, level, and I am pretty sure we would still be exactly where we are today with one significant difference.
We would not have the problem with dwarfism we have now.
One strike and out, as far as I am concerned, it is working for the Friesans and it would work for us.
I also think that once a test is available it should be mandatory for all breeding animals.