That is, China has been pursuing industrial policy and state-driven investment to the extent that it can be considered a trade barrier. Other Asian countries too have been making such large state driven investments in semiconductors that the US semiconductor industry can demand $50 billion of state subsidization at a time when it is more profitable than ever.
Some of this is not the specifics of China's government and policy but is driven by China's size and the speed at which it integrated in world markets. For instance most of the time trade "lifts all boats" but it turned out that the China shock was so large that it really did hurt workers here.
This is not a matter of some little country Belgium practicing dirigisme, this is a matter of multiple industries that the US is being to be forced out of. For instance China subsidized a large number of aluminum factories that have been producing a huge glut of aluminum that is building up in warehouses, making it impossible for other aluminum producers to do business on a market basis... And furthermore having an impact on upstream and downstream industries.
Free marketeers will say that China will ultimately pay a price for wasteful spending but going down this path we will see the US industrial base hollowed out more and find that the slightest sniffle or sneeze in China will cause supply chain ripples that are harmful to our economy.