Companies think that it would add to their bottom line, to move manufacturing out of the country.
Trump is using the issue of tariffs as an incentive to keep companies from leaving the U.S., because it would not be a financial incentive to do so.
In this case, he is trying to keep companies in the U.S. so the effects of retaining a dollar in the U.S. occurs, rather than having it go out of the country. That is, a dollar paid by a company to a U.S. employee, gets spent on food, products. This provides income to other businesses, community and adds to the tax base. This money then gets spread to other businesses, etc. A dollar spent on a product made outside the U.S. goes to the company, then partially to foreign workers, and foreign government.
The issues about high taxes, minimum wages, etc. is a separate issue, which needs to be addressed differently by cutting regulations, etc. He has spent some time about cutting these during the primary debates.
In rallies, he hasn't spent the time to explain this clearly, however, he's going to have to do a better job of it, to sell it to the general public.
You haven’t explained how government-forced higher prices to the American consumer attacks the core issues of why companies are fleeing the U.S. in the first place.