Saying the Chinese invented Global Warming is batty, but it is certainly true that they have become more competitive in manufacturing by game theoretically "defecting" on it -- going crazy with cheap coal power to undercut all the other nations who have taken at least some steps to reduce CO2 emission.

Of course Trump's point was not that nuanced. He said the batty thing as near as I have heard, and I have not heard any substantial proposals on how he might correct the trade imbalance without wrecking the economy by starting a trade war in a fragile economy.