What is not the problem
NAFTA, free trade and globalization are not the problem. The opposite of free trade and NAFTA is tariffs on imports. While the US in its early years, and other developing countries, used these successfully to protect infant industries, it only works for a few industries, and not an entire industrialized economy. For example, a tariff on steel protects steel worker jobs, but drives up the cost of steel for carmakers, costing auto industry jobs and also making cars more expensive for every other worker. The net is a negative effect on middle class workers.
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