OpenAI and Anthropic are beholden to the capitalist system they exist under and hence cannot compete on local models. Like you say, they must try to maximize shareholder value. China is unencumbered by that constraint.
But if you were in China, could you say you hate the Chinese Communist Party and China openly and as often as you like without imprisonment or worse?
We know the answer to that. So go ahead and trust China more than the U.S., but I think that is pure foolishness.
Many technological advances weren't driven by capitalism, early computers and the internet were literally developed by the government.
There was an outdated but relevant saying
'In America, you can criticize president Nixon anytime'
'Yes, but in Soviet Union you can also criticize Nixon anytime.'
The point is not that they're safer but that they're not a relevant concern in the same way. (According to OP)