US was already shown to be behind in 5g, China is already caught up. Heck they even helped AMD catch up to Intel, and see what sort of major success that was ( https://en.wikipedia.org/wiki/AMD%E2%80%93Chinese_joint_vent... ) . These moves are there to slow it down. But China can make other moves like moving tech knowledge from one company to others and play all sorts of games. Fact is knowledge despite what Americans want the world to believe, replicates and distributes powers in ways which are very difficult to stop. If China is not building it, they will move the knowledge to some ally which can build it. It's almost guaranteed at this point that we are already living in a bifurcated world where US will need to manufacture everything in other countries than China. And yet China's manufacturing edge is not going anywhere. They can clone any US product anyone else is producing and sell it to their trading bloc.