> The problem starts when there is a massive asymmetry in the trade.
Up until a few years ago, there was a massive asymmetry, but in the opposite sense to the asymmetry that Americans usually complain about. Because China was a developing country with very little capital but a huge labor pool, there were huge investment inflows into China. Western companies took advantage of cheap labor in China, setting up factories to produce for Western consumers. Chinese consumers were almost completely out of the picture. China did not have the capital to invest in foreign countries, so the investment was almost entirely unidirectional.
That began to change as China's workers began to earn more, and Western companies jumped into the Chinese consumer market (Starbucks has thousands of locations in China, VW sells millions of cars in China a year, and so on for countless Western companies). Whereas you would see almost no Chinese brands in Western consumer markets, the Chinese market was awash with Western brands.
Now, Chinese brands are starting to enter Western markets, and China also has capital to invest abroad. The relationship is becoming more bidirectional. To the United States, which was happy to exploit cheap Chinese labor and to sell airplanes to the Chinese market, the idea that China might be transforming into a serious economic and political competitor is alarming. That's why there are suddenly these myopic complaints about the relationship being one-sided.
> China has completely blocked US services from Google to Uber
Google is blocked in China for political reasons. Uber was allowed, and indeed operated in the Chinese market for a number of years. It failed there, because there was strong competition from companies that understood the local market and local consumer preferences better. Let me ask a simple question to test if the relationship really is asymmetric, and in which direction the asymmetry points: Do Chinese brands have a larger presence in the US than American brands have in China?