UK.
My man (sorry to misgender you but you have no pronouns displayed), the state religion in the UK is anticommunism, and you seem to have swallowed this religion wholeheartedly, even as the USA reduces your country to the state of a glorified colony / TERF-laden aircraft carrier. Enjoy experiencing the other side of imperialism I suppose. I hope this winter doesn’t get too cold?
I'd rather be a billionaire in the US because my English is better than my Mandarin. Quality of life would be exactly the same at that income bracket wherever you live in the world. Labor protection would be weaker in China though, if I were looking to exploit my workers...
Then I’m glad we’ve established that it’s better to be a billionaire outside of China, because China is a workers’ state that regularly executes billionaires. Losing ideological battles online is but a prelude to losing them in the real world 😉