Let's say you say something less than pleasant about China, or you like Winnie the Pooh.
China has already demonstrated the will and influence necessary to extend pressure on other companies, governments, and etc to deal with such things.... and you have far less recourse (if any) to deal with (or know about) it than most anything.
I post this a lot but it's true:
“Injustice anywhere is a threat to justice everywhere. We are caught in an inescapable network of mutuality, tied in a single garment of destiny. Whatever affects one directly, affects all indirectly.”
― Martin Luther King Jr.
But let's also be clear that much like your data being held by a corporation, leaks, etc all happen... if Russia has it, so may someone closer to you.
But I think it is also unhelpful / inaccurate for every non free nation that comes up we get these sort of "What about this place!?!?" false equivalency arguments.
Leave a little nerve agent on your doorknobs.
Also the FSB would probably report on you to the US govt anyway, if you were actually up to something big enough that the NSA would have taken interest.
I personally think the NSA has a jurisdiction to do more to American citizens in the USA. I would be extra careful about the NSA if I was H1B.