Why do most guys like women with long, smooth, straight hair? Is it because the back is prettier? It looks like a beautiful woman?
However, most of the men you mentioned should be limited to Chinese nationality. This should be related to the traditional Chinese problem, most Chinese men like to watch martial arts, cultivation. The ancient costume dramas. And inside the female protagonist will be a white dress with long hair. This looks relatively weak, giving men want to go to pity and protect the impulse. Men read novels and watch TV dramas more or less will be some of their own and male protagonists together, fantasize that they can also like the male protagonist to give their beloved endless love, can abandon all for her, love life and death are unswerving. In short, Chinese men like to have long hair like China's national conditions. It's the same as why Chinese people are Chinese, because they all flow the same blood.