Yes, Tony_1 now you're starting to understand.

Do you really think the government rigorously audits US imports to make sure they comply with the "Rules of Origin"?  They audit as carefully as Harper audited his TFW program (i.e., not at all).  And do you really think corporations are honest about how much of their product comes from China?

All "free trade" deals are bad for regular people.  They're not about free trade at all, their aim is to reduce labour costs by destroying jobs and benefits in order to please corporate interests.