So the United States has a massive trade deficit with China. Many argue that this benefits the Chinese but hurts Americans.
However, consider that I operate on a massive trade deficit with my local grocery supermarket. Am I worse off for it? Would I be better growing my own food? First of all, I haven't the acreage necessary to grow enough wheat to fulfill my consumption of bread, or corn for its products, or beef, or pork, or hops, etc. So if I stop buying from Kroger, I and my family will starve. Secondly, even if I had the necessary capital to provide my own foodstuffs, I would then be unable to do anything else, for managing a farm/ranch is an all day occupation.
Basically, those who argue against free trade with countries such as China are also arguing that you never buy anything from any company. You should just make it yourself.
That's absurd. I am wealthier because I buy my food from someone else; because I didn't build my own car from my own steel, plastics from my own petroleum, wires from my own supply of copper ore, and rubber from my own rubber trees; because I didn't grow, clean, and weave the cotton that composes my clothes; etc.
Kroger provides me with things that I need at a price that is much cheaper than I can provide for myself, so I buy from Kroger. Similarly, since Chinese companies supply many goods at a better price, I am better buying them than from anywhere else that is more expensive. With the money saved by purchasing cheaper goods, I can better provide for my other wants or needs.
Buying Chinese goods hasn't made me poorer. It has made me wealthier.