Why isn’t there a true term to refer to “ethnic Chinese” in English or any western language?

The term “Chinese” refers to the Chinese state. In today’s case that would be the People’s Republic of China. The so-called ethnic “Chinese” would refer to themselves as “Hua” (literally flower people) and “the people of the Han”. Ethnic Chinese people do not necessarily see themselves as people of the Chinese state. But why isn’t there a term to distinguish between those of Chinese ethnic ancestry and those of Chinese citizenship?

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