This wasn't really an accusation that China / India are less moral, only that they will game the system differently than the US will. I mean... I put 'most honest' in quotes to imply the US is not really honest. No state actor is honest or moral, they all act in their own national interests.f
For all the instances you reference, you think India or China don't have an equivalent moral failing? Cultural revolution? Great leap forward? Tienanmen square? Great firewall?
As for India, go look up "most polluted city in the world." The top 5 are located in India and 9 of the top 10 are in India. Do you expect them to implement carbon taxes when they can't even clean up their own air?
The whole point of this thread is that we need a technology solution with the underlying reasoning that political solutions have been and will remain untenable.