Different standards of asian beauty in the east and west ?

in asia (china , japan , korea ) beauty standard is fair skinn , double eyelid big eyes , small mouths , straight noses
just look at celebrities in asia , almost all females who considerd beautiful in asia
most have double eyelids , straight noses , fair skin etc..
but everytimes i seen white guys with asian women
those asian women are yellow or tan skin with a flat nose and small, slanted eyes
and asian celebrities in american like lucy liu , Lisa Ling , Sandra Oh etc,
some white people may find them attractive , but most asians find them not attractive
why are white and asian people have different standards of asian beauty?