That doesn't help you if they have you in China and keep you from getting access to an embassy. Dual citizenship only helps if they actually recognize it, or your host country learns of your plight- neither of which are the case here.
This might just be my own strange way of thinking.
I haven't actual lived in my parents house in decades, and yet when I go there to visit them I still think of it as "going home".
In the case above, I assume we are talking about people born in China, who have left to live in another country, and are then involuntarily returned to China. In my head, China is still the home country.
All of that said, having read your comment, I just now realized that is and uncommon understanding of the words. Your interpretation is certainly closer to the emotional meaning of them for the people involved.
