I think you’re a little bit behind the curve here. China spent $1 trillion on Belt and Road building ports, train lines, roads and airports. USA spent approximately $1 trillion in Iraq and Afghanistan. For what result?
The old joke is “the Americans give us a lecture, the Chinese give us an airport“. That joke is at least ten years old.
Why do you think the Chinese built this stuff? To ship us cars etc etc etc.
Just a side point here. If Chinese factories spew out CO2 building us cars and iPhones, I personally don’t think we can count that as just their CO2. It’s a little bit like London blaming Yorkshire for Drax power station’s CO2. I’m sure you agree.