Cheaper prices mean nothing if you don’t have a job. If you look at history, the US became the largest economy in history with very high tariffs. In fact that’s why there was no need for an income tax until 1915 or so.
Here’s a very good history of tariffs in America. High tariffs didn’t make American wealthy.
American Tariffs and Wars From the Revolution to the Depression
https://mises.org/library/american-tariffs-and-wars-revolution-depression
James Brovard does a great job. High tariffs for instance, make sugar too expensive and push candy manufacturers overseas.
http://sugarreform.org/why-reform/costs-of-the-sugar-program/cost-to-manufacturers/
The entire site is a treasure trove of data and info, if you’re interested in learning why tariffs are so bad.