You are a taxpayer right? You care about America remaining an industrial power? You pay taxes? You care about blue collar people, the new Republican base, and the destruction of small towns in red states that offshoring begets? Right?
Industrial output in the U.S. is higher than it's ever been. That doesn't mean we still need every factory and industrial facility that was built after 1940.
And guess what ... almost every one of these industries in the U.S. is dead-set against protectionism for their own reasons. For one thing, they all rely on foreign materials for their production processes to some degree.
P.S. -- Those "blue collar people" aren't the new Republican base at all. They are the TRUMP base.