Perhaps your understanding of basic economics is absent the definition of dumping. Dumping is when a government subsidizes the cost of making a product in order to force other producers out of business. It is almost always followed by an increase in prices by the dumper after the competing companies are gone. It is forbidden because it unfairly manipulates the market and stifles competition.Personally, I think stuff should cost what it actually costs. The price of a tire should reflect the actual cost of producing it in the US. If we have a complete and open system of trading, we will have a race to the bottom of labor standards, wages, and environmental regulation to compete with China and the emerging African industrialization. If it costs a few dollars more for my tires or a new tv, then that is fine with me; it is the actual cost of maintaining our standard of living and manufacturing base.Why would we sell out our manufacturing base for a slightly better price on tvs or tires?