"It's national security!"

Seriously? He is of Chinese heritage, speaks Madarin. He watches Chinese films, reads Chinese books, listens to Chinese music, probably follows Chinese language social media. He's married to a South East Asian women, his affair is with a Chinese ethnicity.

National Security?

Let the man be, he's a geek what loves building technology. He made many people rich, and his products drive modern AI. All of humanity will benefit from his work.

National Security?

He came to US at 9 years of age and is a US citizen. None of the dramatic things you mentioned apply here. His geekiness and love for technology or philanthropy are respectable, no doubt, but not a reason to excuse illegality.

yes, national security.