Trump already made some crucial moves to strengthen the US economy. He wants to depreciate the dollar and also reduce the dependency on exports for products and services that can be produced and rendered locally. We might see some drastic and controversial changes during his 4 years.
In his mind, the US subsidized and supported other countries and neglected their own country. He might create more jobs this way, and this might reduce debt. That is to say, if the consumers use this extra income to pay the debt, and not to spend more on fast food and cheap consumer goods.
It's not as easy as it seems. Sometimes you want to do something with good intentions and you end up delivering a big mess. Trump thinks reducing chinese impact on the economy is nothing but positives, but in a global market is not as easy.
Unfortunately in this system shitty mass produced crap like what the chinese does... sells very well and its hard to compete. I dont see how he can compete with US produced goods unless he start cutting US workers wages.
In theory, if the US economy improves and the salaries and wages for the locals increase, people will have enough disposable cash to buy better products. They currently buy cheap Chinese imports, because they cannot afford the better products.
Do not underestimate patriotism in the USA, people will pay $1 extra for something that has been manufactured locally. If imports of these goods are stopped, people will have no other option than buying the goods that are on offer.
Local manufactured goods, increase job opportunities and this puts more money into people's hands.