It’s a separate, walled-garden OS built for the Chinese market that has very little English support and very little access to existing software that the rest of the world uses. Are you sold?

China builds physical objects for the world. The US sells intellectual property, financial services, with far less manufacturing.

So no, CO2 per GDP is not a useful measure.

When your hospital or HMO decides to jack up the price of a medication, that’s measured as an increase in GDP. When your car insurance goes up, that’s GDP going up.