Until or unless USA labour rates are as cheap as the cheap parts of the rest of the world, then all that happens is prices for the usa customer rise, and get harder to export and trade.
Depends.
If T gets automated factories in USA< partly paid for by those investment sweeteners attached to the tariff concessions, and they're clever with it, they could find exports rise..
The best of the world's factories don't have much of the Labour component, and it's going to dive.
There are lots of impressive demos about. Elon is aiming high.
You will have your phone in the kitchen, and tell Robby the robot to get it charged in the lounge.
It knows it needs the charger. It knows that's in the bedroom because it has scanned the house already.
It gets the charger, takes it to the lounge with the phone, finds a free socket or one with something it can unplug, that's near a table, and isn't causing a trip hazard; plugs them in and comes back to you telling you where it is and how long it'll be before it's fully charged.
If it finds another robot charging, it can ask it how long it's going to be....
Stuff like that is simple for AI, now. Imagine a well defined area and fixed range of operations in a factory.
The "moderately" intelligent jobs will all go. Like call centre operatives, McDonalds workers, fork lift drivers. Care workers is a current focus, coming along nicely.
The way human-like "hand" development is coming along is spooky.
"Humanoid" is a way to develop right now because so much of the world is designed for humans. At the moment.