People get elves and fairies confused all the time. Elves have no wings, and they're not tiny. The idea of the wings come from the activation of the wing chakras, but elves had no need for wings to fly since they could astral travel. The average elf height was 5 ft to 6 ft. They were short compared to humans, who at the time the elf population was fully alive, were 9 feet and up.

Elves also have some kind extra bone on the sides of their body that connected the hips to the shoulder.

Some sort of cataclysm happened during the time of Atlantis where the human race had to repopulated. The new humans were shorter, more fragile.

All the otherkin races were wiped out, although I think some exist in spirit form all over the world. The present day stories and legends come from the spirit of the otherkin races, but the memories of their former kingdoms were wiped out.