Is he still a citizen of China because he smuggled into the United States and was later sent back to China?

Because the man who sneaked into the United States and was later sent back to China is not a citizen of China. Nationality is a status symbol that an individual belongs to a specific country, which enables him to enjoy civil rights and other rights granted by international law in his own country. In China, some people gave up their China citizenship and immigrated to the United States out of yearning for developed countries, pursuing their careers or other reasons. These people are now called Chinese Americans. Among this group of Chinese Americans, some people have never been recognized by the U.S. government because of their identity or lost their American citizenship because of something, and were eventually sent back to China. These people had given up their China citizenship before they immigrated to the United States. After being repatriated to China, they have neither lost their American citizenship nor their China citizenship, and become stateless, losing all the rights conferred on them by their nationality.