It is for the best, there are plenty of cool things to do with the idea. Not one single DnD media has done any of them. Just start fresh. Naked mole rat elves. Just blind hairless and pooping on each other the way a cave species was ment to.
The Gygaxian take on drow was always :kombucha-disgust: and was loaded with misogynistic baggage from the start, written right into the text, that amounted to "these straw feminists with the whips deserve to have a lesson dealt to them and they're born evil so they're fair game! Also their weapons, armor, and clothing disintegrate in sunlight if you get the implications!" :awooga: :hypersus:
Probably a good thing tbh. I like what drow can be in the right GM's hands, but their origin and established lore and everything is cringe city. No reason not to throw the whole thing out
D&D elves, including dark elves, are borrowed from Norse folklore and Tolkien's interpretations of it. Mind flayers and beholders were specifically created for D&D, so the reason for their exclusion is legal.
Tolkien's "dark elves" weren't black-skinned, nor did they live underground, worship spiders or take slaves. They were called "dark" elves (Moriquendi) because they never saw any light before the sun and moon (i.e. the sacred light of the Two Trees).
Tolkien had a big thing about light. And its opposite, darkness.