Immigration is driven by historical and economic necessity on both sides of the border. There are times when the United States needs Mexican labor, such as during World War I and World War II, that migration is encouraged. During economic downturns, migration is discouraged. Repression is directed toward this population, such as during the Great Depression, the economic recession of the 1950s and the present downturn.
Perhaps by analyzing and understanding history, we can change our perspective on the issue - not by building a fence across the border but by building a bridge between two countries that share a long history. It is difficult to comprehend that a physical barrier across the border will fence in history.
Most discussions of Mexican migration into the United States lack a historical perspective that lead to characterize it as a spontaneous and recent phenomenon. However, people of Mexican origin are descendants of one of the six original world civilizations and whose ancestors help lay the foundation for the development of the present-day Southwest and other regions.
The melting pot theory of assimilation and its assumptions are most often used by journalists, politicians and citizens who don't believe Mexican immigrants, legal or not, are productive members of society. At best, this theory is applicable to ethnic immigrants of European heritage. Unlike European immigrants who had to traverse an ocean, this theory does not apply to