Already happening. In the old days, it was common for well-to-do men to have multiple wives. My wife is Chinese-American (born here). Her grandfather (born there) had multiple wives. Her mother, being born a female, disappointed the grandfather and he immediately married a second wife the same day as the birth. That's just how things were there. The son, from the second wife got everything, all the wealth. But the communists took over and he lost it all. My wife's mother fled to the U.S.A. (Long story, my wife's dad was a U.S. G.I., married my wife's mom and brought her here.) My wife (despite being full Chinese race) is disgusted with Chinese people and their treatment of women.
Interesting story about your wife and her family. It takes courage to leave everything behind and come to a new country.
One of my favorite books is My Years in Communist China by Eva Diao.