Bp morphs to Purebred dogs is apples to oranges.
Morphs have the same number of chromosomes as their wild counterparts. Other than the paint job, they're genetically the same.
Its just some morphs that have heritable issues such as the spider wobble, which doesn't get selected against and the reason why they're still here. But then again, the first spider was an import. The wobble is attached to the spider gene.
And inbreeding occurs often in the wild. I'm not saying its good, it just makes the population have a higher homozygosity.
Sometimes it negatively impacts populations (cheetahs), while sometimes it has no effect and even sometimes is positive (elephant seals).
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