As far as I know you can use tarrifs to protect targeted industries but because there is retaliation the net effect is a wash or a negative.
“because there is retaliation the net effect is a wash or a negative.”
Only if tariffs are not used across the board. The US is an economic powerhouse. If we rely on foreign trade instead of domestic trade then we are a country without borders and that is no country at all. Might as well not have a country.