Protectionism/tariffs = BAD. The answer is the reduction or better, the elimination of business and capital gains taxes and the erasing of 95% or all of federal business regulation beyond guarantees of weights and measures as specified in the Constitution and by legitimate extension, truth in advertising. That will make American business super competitive in the world because, except for the huge costs imposed by the government, American industry is far more productive i.e. cost efficient/productive/ than any other and industry and, of course jobs, will flow back into the United States.
Protectionism raises prices to consumers and cuts off American industry from the world. It chases large American employers offshore so that they can compete in the wider world and makes the protected industries lose efficiency. Reducing their competition lessens the drive for lower costs and higher quality.