DeMentis advocates putting an end to China's permanent right to normal, unrestricted trade with the US.
To do this would require putting an end to the World Trade Organization. I am in favor of this, but it won't be easy for the US to defeat the plutocratist forces that benefit from the WTO.
DeMentis probably thinks that the US will be able to use this against China better than China can use it against the US. I make no such assumption, but I think that without the WTO we could do environmental protection and decarbonization better.