While manufacturing employs fewer Americans than it did in Donald Trump’s youth, total U.S. employment has risen, as more Americans find work in other sectors of the economy. If Trump would give up gains in efficiency solely to boost employment in manufacturing, then he may want to consider this famous piece of advice attributed to Milton Friedman:
Milton recalled traveling to an Asian country in the 1960s and visiting a worksite where a new canal was being built. He was shocked to see that, instead of modern tractors and earth movers, the workers had shovels. He asked why there were so few machines. The government bureaucrat explained: “You don’t understand. This is a jobs program.” To which Milton replied: “Oh, I thought you were trying to build a canal. If it’s jobs you want, then you should give these workers spoons, not shovels.
Does the Donald want America to build things, or does he want us digging with spoons?
Source: Trump Is Wrong: America Makes Tons of Stuff | Cato @ Liberty
Of course, facts can be pesky creatures. Here is what real manufacturing output looks like from 1965 to 2015.
U.S. manufacturing industry added jobs in the years immediately after the North American Free Trade Agreement was passed. Trade restrictions sometimes even inflict harm on domestic manufacturing. Tariffs on manufacturing inputs (e.g., hot-rolled steel) may protect U.S. workers making that specific product, but harm all the U.S. manufacturers who need those inputs to create other products (e.g., airplane parts) further down the production line. On the whole, trade enriches us.