Free trade! Capitalism doesn't suddenly stop working once you cross international boundaries.
That is part of the problem and in spite of promises to the contrary, China has not been democraticized by free trade and more likely is we will end being censored by the Chinese. Amazing how free trade came back to bite our sense of freedom almost as effectively as Jefferson's protectionist embargo.
It is not he free trade or the protectionism that kills you, it is the excess in either direction.
Protectionism is harmful to the average American, only serves to help politically-connected industries, and forces the heavy/destructive hand of government into economic decisions that free individuals making voluntary exchanges should be making.
And yet protectionism created the industrial powerhouse that defeated Nazi Germany.