Well, that seems to be a good strategy but from another point of view, America cannot produce all they need. There are still things other countries produce they would need. And if the import duty of this is high, it would definitely give rise to scarcity of the product and an increase in that price thereby causing inflation on the long run.
Everything that has a good side, definitely has a bad side.
You're right. There are actually a lot of problems with the tariffs, I only talked about what I considered the major ones that makes it unnecessary in the first place 👍🏾