> there is precisely no reason that production of goods in foreign countries and the larger shipping costs should be higher than domestic costs.  just because you can not think of a reason does not mean there is no reason. ask yourself, if there was no reason to buy products from foreigners, why did domestic consumers buy foreign products in the first place for all these centuries? it's because foreigners sell products for lower prices. > china and north korea have both proved it can be done and it is key to industrializing their economies. and guess what we need to do? china engages in a lot of international trade, by far one of the biggest international trading parties on earth. north korea is an impoverished shit hole, and a lack of international trade contributes greatly to this. look at the south korean economy which is one of the most prosperous economies on earth and is a major international trade party. > so yes, we can make everything domestically. the usa in particular, could make most things (not everything) domestically. but it would do so at a tremendous and damaging cost.  again, ask yourself, if the usa suppliers could produce products at a lower price for americans and thus cut out all foreign suppliers, why aren't they? it's because they can't. this means tariffs will absolutely increase prices, which will decrease income, which will then decrease further spending/investment, etc.
Canada