Increase in demand can be easily gained with exports.
Due to border adjustability, our exports would leave our shores without our tax costs built-in [as the costs currently ARE built-in]. That will make our exports cost less hence more demand for them.
Imports will become more expensive/have their profitability reduced b/c imports will have the tax added to their price. So their price will probably rise a little and their profitability will reduce a little [imports have been eating our lunch b/c they have systems to send us goods without tax costs.]
That’s a good point I hadn’t thought of that. Almost like a built in tarrif.