Rex
re read the speech 
I take it  at face value 
America First , probably means America First   
Please explain how a concilatory approach will save a manufacturing job in Ontario when an onerous import duty, exceeding currency adjustment factors,  is put on that Ontario factories product.
So in the world of Trumps' speech . Who gets laid off? The kid in Ontario , or the kid that just got the job at the reopened factory in Columbus Ohio?
At any rate , those global trading companies you don't like are going to throw a big wet blanket over too much protectionism because their interests align with American shareholder and consumer interests.