Although Chinese products may compete on a broader scale with American goods in the future, the gains by China so far have generally not translated into job losses in the United States. China's leading exports are products that have not been produced in large quantity by American factories for more than a decade. They're not selling us high-technology goods that are produced in a hothouse set up by the government. This is pretty low-spectrum stuff. It's mainly an assembly function.
China is still full of obstacles to free trade.
In addition to contending with a maddeningly disorganized bureaucracy, foreign manufacturers must bow to government demands that they share technological expertise. Foreign-owned companies are also required to export a certain percentage of what they produce and must ship goods overseas only through Chinese trading companies. And China provides huge subsidies to state-owned industries, which are shielded from competition. Chinese officials have offered to reduce trade barriers in exchange for membership in the World Trade Organization, a step that would allow the country to enjoy low to zero tariffs. But in China there is always a vast gulf between changing a law and enforcing the change.