I've seen white feet that are hard and strong. I've seen black feet that are weak, soft and shelly.
Research has been done on this (IIRC, by Doug Butler) and pigment, or the lack of it, is not the cause.
A white hoof tends to have thinner hoof walls.
Generalizations like that have no basis. Have you read Butler?
I don't know Butler, for that matter, I don't know the depth of the knowledge of horses on the Campfire, but if it is as full of holes as the rest of the information that is shared here, there is much room for misinformation.
All I know was this cowboy did know horses and when he told me light hooves were more prone to problems, I took him at his word for his experience. I'm sure he ate more horses than most of these drug store cowboys ever rode.
