Comment by Miraste

Even ardent protectionists generally agree that tariffs can't bring jobs and manufacturing back by themselves. To work, they have to be accompanied by programs to nurture dead or failing domestic industries and rebuild them into something functional. Without that, you get results like the current state of US shipbuilding: pathetic, dysfunctional, and benefiting no one at all. Since there are no such programs, tariffs remain a cost with no benefit.