Are American immigrants happy in transnational marriages?

After nearly two years in the United States, I have seen many marriages between China and the United States, and many people are very happy. Some time ago, I chatted with a friend who came from Taiwan Province Province and has been working in Morgan Stanley since he studied in the United States. We also talked about Sino-American marriage. He said that in his understanding, if one party is not for the green card or the other's money, the marriage between China and the United States is even more stable than that in China. Undeniably, many women's longing for transnational marriage comes from practical considerations: 1) such as green cards. Even if you study in the United States and work in the United States after graduation, the green card is still something that many people have struggled for years, not to mention those who stay in the United States in the name of visiting or traveling, hoping to become legal immigrants one day. Marrying an American is the most convenient and smooth way to get a green card legally. Of course, some of them are cheated by money and sex, because the purpose of marriage is not pure, and it is inevitable to ensure the quality of marriage, even the personality of the other party. 2) The national attraction behind Americans. The overall affluence, social civilization, order and social welfare of the United States (especially the protection that low-and middle-income groups can get) is also one of the great attractions, especially for the non-rich and non-expensive groups in China. Before I came to America, I had a very good friend. He is a famous local doctor and professor (also a minor celebrity in China), and he firmly opposes my going to the United States. His reason is that I have a good life and I can find anyone I want. Why did I go to America? Because in his view, China is rich enough to provide a good material life for some groups. As far as material matters are concerned, many people in China are indeed far richer than Americans, even richer, but they are still far from the real quality of life, and the social environment needs to be improved for many years. Of course, some people love each other's money, and many people blindly yearn for it because they don't understand foreign life and culture. For example, many people think that transnational marriage is romantic, foreigners are rich, and if they marry them, they will have nothing to worry about and even live a luxurious life. For women who marry foreigners because of green cards, money, vanity and other reasons. I wonder if their marriage is happy. Some of them may not mind (on a domestic TV dating show, not a girl said that she would rather cry in a BMW than laugh on a bicycle). Maybe they also feel happy, because everyone has a different outlook on life and a different definition of happiness. I have also seen many pure marriages, not for each other's green card, not for money, not for vanity, really just to find the person who respects, loves and knows himself in the crowd. Another kind is transnational marriage. At first, the woman was forced to find a foreigner out of helplessness, but in the end, many people lived happily. I met many examples when I went to Guangzhou to apply for a visa two years ago. Most of them are in their forties, with children, with average appearance and average figure. In the domestic marriage market, they are obviously hopeless.