You pay for cheap imports twice. Once when you buy the import and again when you have to support unemployed Americans.
Imports should have tariffs that are at a minimum equal to the taxes that domestic producers have to pay plus the cost of supporting unemployed Americans.
Our tariffs are so low, we create a tax incentive for companies to produce offshore.
If you start a trade war you'll create more unemployed. You know that many Americans work making goods for export.