China is where Walmart gets their cheap crap (and Apple their iPhones ), tax the CO2 and the people shopping at Walmart get mad that everything's more expensive. Slash, the manufacturers look for other countries where maybe the CO2 expulsion is under the limit, or the reporting isn't that robust... Because hey if they're not competitive price-wise, the customers look elsewhere for their cheap crap...

That's measured already since the 60s. You never see any reference to it because what it shows is a constant rate of increase that is entirely unaffected by literally anything you can think of. Rise of China? No impact. Lockdowns and the global air travel shutdown? No impact. Renewables revolution? Invisible. Great recession? Of course not. And all the international conferences and agreements.... well, you get the picture.

This fact is discouraging which is why the media and government enforce a blanket silence about it. Along with many other aspects of climate science.