IMO, I Love Lane that is irresponsible and no worse than breeding two frame overos together - which is ridiculous. You have the same percentage chance of gettig LIVING frame patterned horse out of a frame and non-frame as you do from breeding two frames, and then you don't have any chance of producing a foal that is going to live a short and miserable life, either. It's a disgusting practice at its worst and sheer ignorance and apathy for horse welfare at best. (There is NO excuse for breeding two frames, except perhaps ignorance that one or both was frame at all, but then, if you're in the US or anywhere else frame is common, ALWAYS TEST.)
People breed hypp positive halter horses because they think they can get them to build all that muscle without doing any work. It's greedy and money-grabbing and irresponsible. People also breed halter horses with horrible post legs and upright navicular-inviting pasterns doesn't make it right.
And to compare them to children is ridiculous. Children don't go to slaughter when they're not wanted. Children can learn to understand what's happening to them.
Besides, a lot of people with hereditary disease DO decide not to have children. I know at least one person who is heterzygous for the gene which causes cystic fribrosis who insists she will have her partner tested before she ever haves children to ensure there is no chance of them having a child with the disease.
A horse isn't going to care if it never has babies. It's silly to give them human emotions about the whole thing. It's like BYBs who insist they just HAD to breed their mare because 'she wanted to be a mommy'.
spade = spayed.
And they are mutants - a horse that has terrible, painful, terrifying fits: do yo REALLY want to produce more of those? I'm not sayign they're not worthy of acheiving anything, but there is no reason to continue to nurture a dangerous mutation.
I Love Lane, you seem like a sensible person - I'm surprised you think this way.