Maybe you just don't understand how the system works Thai. If I buy something made in the US, it helps the person who made it keep a job. Therefore, I am not being taxed to give him food, shelter, clothing, etc. (and now with Obama, giving them cel phones and computers too). When I buy cheap junk from China I am promoting theft, patent infringement, and the Chinese economy. Let's face it that last thing China invented was gun powder. They are a country full of drones who make other people's things. It has been stated that if you show them a product it takes China about 48 hours to copy it. Within a few weeks they can mass produce it. That is what they do. Very similar to Toyota's Lexus line. They don't need to hire designers because their cars will be made to look as similar to the newest Mercedes as possible without getting sued. If Toyota was a Chinese company, it would be made EXACTLY like the Benz, sell for half price, rattle and squeak, and cause cancer.
BTW the things that made America great heve been undermined by politicians for more than fifty years.