He he i just half Chinese. My mother is second generation Chinese, my father is suppose Vietnamese.
No body can be pure after generations living abroad. Me too, I'm not pure ethnic Chinese either. 心所安处,即是吾乡。

bro ! I'm 100% Vietnamese , North of Vietnam , but i'm learning Chinese language , my heart always for China ! what do you think about me ?
What is the definition of Chinese? Who can be called Chinese anyway? There have been a lot discussions in the past, with interesting insights. And there are different opinions.
Without getting into the weeds, I suppose most people would say ethnic Hans are pure Chinese, although Chinese these days are not just Hans.
But Hans are not pure, they are hodgepodge of so many different ethnicity and peoples blended over the centuries. Today, to northern Chinese, people in Guangxi province look and sound more like Vietnamese than "real Chinese." LOL. When the Manchu came to rule China (or the core China), they were resisted by the Chinese mandarins and scholars as foreign. The Qing dynasty made huge efforts to blend in. They learned Chinese and Chinese cultures, respected Chinese traditions and scholars. Some of the Qing emperors and royals became deeply versed in Chinese classics and culture, think of Emperor Kangxi, Emperor Qianlong and the nobles such as
,considered by some as the best Chinese classic poet/词人 in the last three hundred years. Over time, they were accepted as Chinese. When the Japan invaded China back in the 1930's, it was said that they made an argument that if Manchu could invade and rule China and eventually were accepted as Chinese, why couldn't they? After all, Japanese then believed they had preserved the Chinese culture and civilization better than the Chinese. It was a distorted and farfetched view, of course, but they did have some origin in the Chinese culture. The last Korean dynasty, 朝鮮王朝/조선왕조/
Joseon Wangjo/李氏朝鮮, identified itself as mini-China because of its adoption of Chinese culture and refused to consider Qing as a proper Chinese dynasty for many years.
I suppose all these lead us to the conclusion that in the broadest sense, Chinese is more of a cultural and civilizational concept and construct, not or less of racial, ethnic, national or geographical ones. In that sense, to be considered a Chinese, you observe and practice some cultural traits, know some Chinese history, and most important of all, understand some Chinese.
This is my simple version of being Chinese.