The problem began when China was given the "most favorable" status by the US Government (Clinton). That is when the dumping began.
I was looking at air conditioners made in China; they were on sale for $84.00. I don't think you could even ship then over here for that price.
Unions exacerbate the problem. As they demand more and more in wages and fringe benefits, they drive industry out out our country. They kill the goose that lays the golden egg. Eventually, manufacturing becomes unprofitable.
Then the investors look for ways to save their capital. When the company gets sold, it is usually Chinese money that buys it. They get the equipment, patents and the American name.
Within a few years, the factory is moved overseas.
When ever I eat out, I always look at the silverware, which really is only stainless now, to see where it is made. I haven't see "Made in the USA" since the 1960's. It is all made in China, Indonesia or Taiwan. And those folks don't even use the stuff, they use chop sticks.
It is better to buy something used in the second hand shop than to buy something new made in China.
Rufus