This guy is young. Not from the Soviet break era of experts soaked up by China.
The Americans and Soviets soaked up German experts following WW2.
China tried to attract as many Soviet ones as possible given China's rather bleak conditions back in that time. Many went to the US.
The guy who developed the first mathematical models for radio energy scattering for stealth aircrafts ended up in the US for example. Chinese experts themselves ended up in the US and continues to. Nvidia and AMD are founded/headed by Chinese ethnics like half of the United States' AI industry and a great deal of silicon valley. Even Chinese experts working at Los Alamos and other sensitive research institutes as much as they are considered potential leaks. One of the main engineers behind the B-2's engine IR design was an Indian guy who allegedly sold information to Chinese state.
Look at the US' Mars Perseverance mission's landing lead engineer Allen Chen.
Can it be said that so much of US technological industry (of the modern era) is at the very least contributed to by ethnic Chinese and Chinese nationals even, who were/are employed by US institutes and organisations, that their achievements are really Chinese? Well that's the implication carried by many Russian chauvinists. Everyone knows China soaked up plenty of Ukrainian and Russian experts to jump start China's MIC. But how come China's not allowed to employ caucasian experts when western nations do this almost as the main engine of their progression since the 1960s... even the Manhattan project was almost entirely led by Jews and even involved a Chinese guy they banned from traveling and wanted to jail after developing the bomb. Same with Boeing having a very important Chinese engineer before the 1960s.
All of a sudden Asian achievements with some participation of non-Asians is supposed to say something? LOL.
This young caucasian guy could be someone employed by CAC for some role related to cockpit design for all we know. The same way Intel employs Chinese nationals.
As China mingles greatly with an open world and partakes In globalism, it's only natural to have traditional definitions of "Chinese" and "Citizen of China" gets challenged. Ten years from now there shall only me more "less Chinese looking Chinese".