To suggest that the main problems are imported goods from cheap labor does not look at the broader picture. There are many factors that have affected wages in this country. One's effective wage is calculated relative to one's expenses. One significant factor is the housing bubble. Housing cost is one's biggest expense, which has nothing to do with cheap imported goods. If your biggest expense has nothing to do with imported goods, it becomes very difficult to associate imported goods, as a significant factor.
Just looking at imported goods from cheap labor over simplifies the problem. "Facts" are not always what they seem.