We miss one of the big points of the tariffs. The tariffs do not appear to be based on actual trade barriers. They are designed to gain power and make money for Trump.
Trump can give exemptions to any company or sector he likes on the parts they import. Any company that gives him money, any company that bends the knee and praises him, or any company that he, his family, or his buddies can invest in to get a competitive advantage.
It's just another racketeering scheme to make money and force people to grovel. Remember, everything is transactional for Trump.