That particular argument isn't really sound, because the question is one of magnitude. However it still isn't obvious why China should enforce US IP law if it doesn't want to.
IP is the ultimate human creation, it has no basis in the physical world. If pretending ideas are property puts China at a disadvantage there isn't a moral or practical reason to do it.
IP is the ultimate human creation, it has no basis in the physical world. If pretending ideas are property puts China at a disadvantage there isn't a moral or practical reason to do it.