From an evolutionary point of view, everything is much more fictional. Do you see people around the street? These are ALL forms of beauty: thick, thin, bald, rough – ALL! Because the signs are inherited from their parents, and as soon as the signs are inherited, it means that the same thin and curly mom WOULD in the past fuck the same low bald dad, well, and dad, respectively, did not refuse - that is, the set of signs that a person inherited, once recognized as mutually attractive))))
Nature recognizes only genetic abnormalities. Siamese twins there, a third leg and all that. And before aesthetic norms nature does not matter.