> I think you can safely say the vast majority of people working at those companies don’t want to see bad things happen to the United States.
What makes this "the key difference"? I think you can safely say the same about Chinese tech companies. VPN usage is higher among tech-literate people for obvious reasons, and while having access to uncensored information doesn't necessarily instill love for the US, wanting "bad things to happen to the United States" is a pretty extreme level of nationalism.
I wouldn't be surprised if Chinese tech employees in China had a more positive attitude with respect to the US than Chinese tech employees in the US, due to "the grass is greener on the other side"-type effects.