The Middle Class Opposes. The American middle class relies on the economic contributions of immigrants. Unfortunately, the Secure Fence Act fails to recognize undocumented immigrants’ contributions, ignoring the complexities of economic integration between the United States and Mexico in favor of a wall between the two countries. While border security must ultimately be a part of any comprehensive immigration policy, history suggests that ramped up enforcement in the absence of sufficient opportunities for immigrants to enter the country legally is a waste of resources. Between 1993 and 2005, annual spending on border security tripled, from $480 million to $1.4 billion. Yet the number of undocumented immigrants in the U.S. also nearly tripled during the same period. Would-be migrants simply adopt more remote and dangerous routes of entry into the country, leading to a much higher taxpayer cost per apprehension, or they enter the country legally and overstay their visas. As long as the nation’s immigration laws are fundamentally mismatched with our economic reality, efforts to enforce them are doomed to be costly failures, enacted at the expense of middle-class taxpayers.