Disadvantaging local producers is how tariffs work! Local producers would then turn to local suppliers who don't have any additional taxes applied. Tariffs are a very blunt instrument, and clumsily attempting to assuage 2nd order pain points will only give rise to 3rd (and higher) order effects.

The lesson here is: don't fuck around with multivariate dynamic systems that have achieved stability: there won't be any one knob you can twist to get a result you want on a single parameter. It'll be worse if you pick one knob and turn it all the way to 11.