Yea, and they did. And they have a home now, something the Night Elves will never ever have.
If all 3 of their zones were wiped out?..
So the blood elves aren’t a nation?
Also, the Night Elves aren’t a nation anymore, pretty sure it’s stated in a good war that the night elves have been ended as a nation. It’s also logical since they have no zones left, no home, their souls are obliterated and the one who did all of it was forgiven / got away with it.