Why do most people like lightskinned tone women when most don't have butts or curvature bodies?

I mean many people put lighter skintone on the pedestal, but most of the time they aint that curvy compared to a sista! Now yea you got some sistas that are brown skin and dark skin who is real skinny as well, but even then, they still have a lil sumthn sumthn to them to back them up! Come on what is all this crave about lightskin tone women, it don't even makes any sense at all! What happened to the term if you have the body you just have the body! Not depeciting on what color you are! I am serious many people put lightskin on the pedestal, and I still don't see whats all the hype is all about! They look like average people to me! You see lightskin everyday so I aint got time to be saying, an ooooooh or an aaaaaaaaaaaaaaw! No they just look like average everyday women to me period! So what is all the hype all about lol?