There are at least reasons. First, much technology is proprietary to companies. You have to get companies that originated in other countries to build them here, and they need an incentive to build here. Tariffs are such an incentive. Second, all of the countries that are having tariffs levied against their products have been levying tariffs against us for years. What would be good is if they stopped imposing them on our products, and then we stop imposing them on theirs. That would make a much better outcome, would it not?
Btw, you fell for my trap with the queen sacrifice.