Let's look at Ford for example because 
makes such a big deal out of one of their fifty or so plants moving to Mexico. While this plant is a small percent of the product Ford would make outside this country, 40% of the cars they sell are outside this country. They are bringing a LOT of foreign cash back to local factories. They are the last company that should be picked on.
The focus shouldn't be on punishing companies who manufacture outside this country, it should be asking why they feel they have to. What conditions preclude them from manufacturing in the US, and fix that. You don't try to play social and market manipulation through tax penalties. That never works, especially in the interconnected world we live in.
Let's be frank, for a company like Ford, there are times it makes complete sense to make a product outside this country, even when not accounting for government regulatory and taxation factors.
Every major automaker has plants in several countries and regions. The largest future markets are China, India, Brazil, Russia, etc.
And for the types of vehicles to serve those markets, the US automakers have virtually no track record.
The discussion about Ford, completely avoids the union topic. Is Trump going to force Ford to operate a union plant in the US? Will the unions allow Ford to open a new non-union plant in the US?
Low information "conservatives" don't need no stinkin' details.
Born rich, draft-dodging, eminent domain and bankruptcy beneficiary, woos contemporary "conservatives," with loud and loud only.
For the record, the following have plants in the US: Toyota, Honda, Subaru, Hyundai, Mercedes, BMW, VW, to just name a few. Would Trump send them home? Tax them for daring to attempt doing business here?
Trump's version of over-regulation, over-taxation is merely another angle of Obama over-regulation and over-taxation.
