Does anyone know why asian women are known to be submissive and traditional women who know how to take care of their men yet are so different today?

Here's an example: http://youtu.be/YmxxQgxssXY Here's another comparing Chinese girls and their ABC variants: http://youtu.be/_RiPfUvHadk

Why do westerners believe Asian women are so submissive and obedient when in fact they have become some of the most vicious women today? In Hong Kong, they specifically have a term for these women and they call it "princess disease" which is them feeling entitled like a princess. I don't seem to understand why there's such a huge gap. Could it be that the high SMV women are the princesses and the low ones are the submissive ones that westerners like?