U.S. auto production is mainly oriented to domestic sales. China probably produces many cheap cars that are exported to other Asian countries that don’t have their own production facilities and wouldn’t be a market for U.S.-built cars anyway because they couldn’t afford them. It’s easy to forget that a Ford Focus would be considered a luxury car in much of the world.
Less than a million cars and commercial vehicles manufactured in China in 2015 were exported. Better grasp for another straw.