>>1342665>>1343128I don't believe its an insecurity so much as its an ideal. The standard for beauty in east asia was affected by the influx of western culture through diplomats trying to open trade. It effected a new ideal based upon western characteristics.
Similarly, the "anime" style was effected by Scrooge McDuck who had obnoxiously large eyes. The big eyes is more or less a holdover from that because its "cute."
pic is not the biggest but...