We've applied import tariffs on various products for our entire existence as a nation. We face tariffs to American imports all over the world. Tariffs and duties are endemic to international trade. Only a ideologue believes in absolute free trade, it is a fantasy that doesn't exist in the real world.
I am in favor of FREE and FAIR trade. I favor trade policies that protect and advance American interests. When exporters receive illegal export subsidies from their government (like in China), they need to be punished. When nations ignore trade rules established by the WTO (like China) we need to punish them. One of the most effective methods is a tariff.
Do you think that losing 50,000 factories and millions of jobs since China joined the WTO is a good thing? I don't. Time for common sense. You don't bring a knife to a gun fight....
"Fair trade" is the siren call of the left and the statists, not anyone who can say they believe in individual liberty. Around the world, leftists have been using "fair trade" in lieu of free trade for decades because they've lost the intellectual argument but still want to use government power to interfere in the economy. Using tariffs to support a specific industry is no different than Obama raising your taxes to support solar power or whatever pet project the left wants. The economic effect is exactly the same. The only difference are the political labels that people conveniently use to make themselves feel good.
Tariffs all around the world have been coming down for decades. At the end of WWII, the average tariff was 40%. Today it's 5%. That is because of the GATT and WTO. Most goods - American goods - go across borders tariff-free.
The argument with China is NOT that they have high tariffs on our goods. The argument is that they have pegged their currency to ours when they should have allowed it to appreciate, making it cheaper to build over there than it should have been. That may have been true 10 years ago, but it's not true today. Today, China is in serious trouble, and HAS to devalue its currency. The Chinese currency is over-valued. The stock market has been plummeting over the past several months in part because of what's going on in China. It would be absolutely insane to slap a 45% tariff on China today. It would drive our economy into recession, if it's not going there anyways.
Mercantilism - which is what you support, whether you know it or not - has long been discredited in economics. It is what third world basket cases have resorted to. And now, the nativist right in America are wishing to copy them.