Japan lost WWII for several reasons. One of them was their lack of sufficient domestic industry. We have insufficient domestic industry right now. China has domestic industry in spades. Is it inferior in quality than ours? Yes. It is quantitatively supperior to ours? Yes, like we were to Germany...quantitatively more powerful, even though Germany was superior in technology to start with.
And, we built China's industry for them...it all started with Nixon. China is analogous to the United States in 1939. They have heavy industry. They are the top ship building nation in the world. And, if they can take Taiwan, they will be the top semiconductor and electronics manufacturer in the world. US companies have been shipping jobs over there (and to other Asian countries) for years in their never ending effort to meet quarterly numbers for Wall Street. Tariffs change that calculus and bring jobs back to the US. Are they are drain on the economy? Of course. But we have put greater drains on the US economy for far less important reasons. I generally oppose tariffs along the lines of Rand Paul...but we need to do something to stop the bleeding, or the nation will bleed out in the long run. If there is something else we can do, like change how we report financial data, I'm al for it, but no one is suggesting any other fix. This is the only fix being proposed. Those complaining about it have no other solution, and indeed don't seem to want to solve the problem at all.