For as long as I can remember I have purchased food and household items from Safeway, Giant, and Whole Foods without any of them buying anything from me. Was I taken advantage of? Of course not. I voluntarily gave up part of my hard earned income in exchange for something I wanted more. I gained and was made better off by being able to make these trades just as they profited from providing them. In fact, I don’t know and I don’t care what those stores did with the money I paid them. Much of it, of course, was used to buy the goods they put on their shelves for me to buy.
These trades (my income for their goods) would only become a problem if I spent more at Safeway, Giant, and Whole Foods than I earned selling my labor. To do so I would need to borrow money from someone and go into debt. That might be OK temporarily, but obviously not on a permanent basis. In the long run, my purchases (imports) can’t exceed my income (export of my labor).
If you change my name to the United States and the names of Safeway, Giant, and Whole Foods to China, Japan and Germany (not necessarily in that order) nothing in this story changes fundamentally. Americans benefit from our purchases of Chinese goods and it doesn’t matter what they do with the money we paid to them (net of what they purchased from us—i.e., their trade surplus and our trade deficit). As I have explained in the following article, what they (all of them collectively) are largely doing with our money (our net global trade deficit) is finance our profligate government. https://nationalinterest.org/feature/who-pays-uncle-sams-deficits-26417
For some reason President Trump has trouble understanding these simple facts. He is upset by our trade deficit with China and Germany and others that his profligate, indebted government has caused. If the federal government balanced its budget (actually being at the top of the current business cycle it should be running a surplus in order to balance over the cycle), what would China and Germany do with their surplus of dollars? Rather than buying U.S. treasury securities, they might invest in the U.S. economy contributing to faster economic growth in the U.S. They might also choose to buy more goods and services from the U.S. thus reducing their dollar surpluses. In all likelihood they would do some of each. Given the resulting adjustments in their demand for dollars, the exchange rates of the dollar for Euros and RMB would adjust to produce the desired reduction in their surpluses.
Attacking China with tariffs and demanding a reduction in their trade surplus with the U.S. is counterproductive and wrong headed. But it does not follow that China is playing by the rules (WTO rules that we should be trying to strengthen rather than weaken). The EU, Japan, Canada, Mexico and others share this assessment and Trump would be much smarter to seek their cooperation in pressuring China to behave better rather than attacking them with tariffs and tariff threats as well. With the recent agreement with Jean-Claude Juncker, head of the European Commission, to deescalate the trade war with the EU and resume the negotiations over further trade liberalization started a few years ago (TTIP), perhaps Trump is changing tactics in a more promising direction. This should include concluding the updating of NAFTA and rejoining the TPP now the CPATPP. We should all hope so.
Richard Rahn makes similar arguments in his Washington Times article today: https://www.washingtontimes.com/news/2018/jul/30/the-united-states-is-doing-better-than-it-did-duri/
Warren's space 
Trump will rescue us from you Globalists!!
It certainly sounds like Trump not only believes that our aggregate trade deficit is a loss of wealth, but that we are transferring wealth to several countries the amount of our individual trade deficits. But his economic advisers claim that this is a mere bargaining ploy and that he really believes in free trade. I’m personally a bit skeptical that bullying tactics promote cooperation. We shall see.