Earlier quoted context omitted.
there are some narrow interests that favor Trump tariffs. e.g. the United Steelworkers Union: "China ... dumps its excess aluminum and steel on the world market at super-discounted prices. The United States, in conjunction with European allies and others, has repeatedly over the past decade negotiated with China to stop defying the rules it agreed to abide by when it gained entrance to the World Trade Organization in…
“Trump’s steel tariffs cost U.S. consumers $900,000 for every job created, experts say“ https://www.washingtonpost.com/business/2019/05/07/trumps-st...
There are other inefficiencies in the US economy, jobs that are preserved or are high paying solely because existing laws limit competition, limit participation by potential additional workers, etc
The real issue here is not "Have these tariffs caused our economy to deviate from pure efficiency?" It's "Which special groups are allowed to have their own interests protected and extended by law and by government action?" This stuff is happening all over the economy.