Just because Ashley, Maria, and Ellen have dark elf blood in them doesn't mean that the other girls don't have a bit of blood from one of the other elf races. It's pretty much assumed that most, if not all, humans carry at least a little bit of elf blood in them. It makes things a little bit ironic that elves are more likely to be "pure-bloods" than the humans who treat them like crap.
No more then the "smart-animals" BS. One of the definitions of a species is that the offspring are fertile (this is why donkeys, Ligers, and Tigons are sterile) meaning, unless genetics work way differently in this world, for a person to have an elf back in the family tree humans and elves are effectively the
same race.
The biggest hoot in the whole purity is a race of clones would be about as pure as you could get...and a disease that took out one clone would take out them all. Another factor is civilizations that tried to keep the royal lines pure (by keeping it in the family...literally) started to have physical and mental abnormalities and the inability to produce children. People would point to the Hatfield and Mccoy finds as an example of such inbreeding...all the while ignoring that would go a long way to explaining why Western Europe was war filled mess for a large part of is history and many leaders were bonkers.
A while ago I wrote the alternate history framework of what one of the most evil racists of the 20th century views would have had if he had had an a vision on how Darwin's theoy actually worked. He wouldn't have stopped being a racists but
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