Aren’t most of their developers in China?

I'm not sure if/how that would even matter in the context.

You don’t remember the whole Australia debacle when their government passed a law allowing them to secretly compel software developers to compromise whatever they’re working on? This is basically the same thing, where we know the Chinese government is capable and willing to coerce anybody in their grasp to serve in their interests. Guess where software developers in China happen to live? China. Where can the CCP most easily wield their power and influence? Also China.

Is Eric Yuan a US citizen? He wasn't born or educated here so I don't know he considers himself American, and a significant amount of his company's product development is not done in America.

Before this sounds anti-immigrant, I'm the product of immigrants like most Americans and I think the qualifier for being American is considering oneself American and having citizenship or on the path to get it.

He received his visa on his ninth try in the 90s. Is there anything that prompts you to doubt his citizenship?

The numerous people I've worked with that have been here for decades and aren't citizens and don't consider themselves to be American?