It is possible to become an American. I have seen it done. My wife, out of all the girls I knew when I first lived in Taiwan, was the LEAST interested in gaining a green card or even living in the United States as a student until we had occasion to enter the United States (her first occasion ever) as a married couple after a year of married life in Taiwan. Over time, she has become a Minnesotan American by choice rather than by birth, and indeed we have spent far more time in the United States than I had ever imagined possible when I first planned my adult life as an American with a university degree in Chinese language. There have been great opportunities for us in America and much that my wife can cherish even though none of her primary or secondary education was intended to prepare her for life in the United States, and none of my higher education was intended as anything but preparation for living in east Asia. The United States is open to immigrants, accepting of cultural diversity, and a second home for many people that becomes a more meaningful home than their first home. That acceptance of outside influence is America's strength, and why the United States and not China will be the superpower of the twenty-first century.
What the United States can learn from China (but even more so from Taiwan, Japan, and South Korea) is better provision of elementary education in government-operated primary schools, particularly in the subjects of mathematics and science. Native-born Americans like me who have lived in east Asia are APPALLED at the wasted opportunities that United States schools have with their lavish resources to provide a truly world-class education. United States schools do not do as badly as they possibly could, but they also don't do as well as they reasonably could be expected to do. Let's learn from China's best examples here in the United States. Meanwhile, I hope that the common people of China eventually learn from other democratized countries of east Asia how to come out from under a one-party dictatorship and to enjoy uncensored mass media, free elections, and a vigorous civil society.