Unpopular opinion, but if I had to choose between China and the U.S. spying on me, I would pick the one who's less likely to have me extradited from whatever country I am in or ban me from flying.
Frankly, I despise what the American government did to Assange and Manning. However, you can't even remotely compare their fate to what is happening every day to hundreds and thousands of people in different parts of China like Tibet. You have no chance of escaping, no chance of trial not to mention any appeal, your life can be destroyed in an instant. Several people in Tibet each year prefer to self-immolate than live under the terrible conditions imposed by the Chinese government.
https://www.businessinsider.com/china-harvesting-organs-of-u...
But for an American, China doesn't have the ability to do any of that stuff. Nor are they likely to have any reason to care about my actions. While on the other hand, the USA has direct powers over me, and is likely to care more because I'm here.
So sure, China and the CCP are evil, probably much more evil than the US government. But even at that, the danger they pose to a typical US citizen is much less than that of their own government. So it's rational prefer, say, a Chinese-made phone to a US-made one.
https://qz.com/india/632077/quietly-a-tibetan-teenager-in-in...
To me, this does not speak about extreme suffering in Tibet, but rather:
1- A very strong sense of self-sacrifice and pride in their community
2- A very effective propaganda machine that persuades even people who haven't experienced suffering first-hand, to make the extreme sacrifice in support of the cause
So you're definitely safer with the US than you are with china.