It is true that there are more immigrants living in the U.S. than ever before. However, the percentage of immigrants in the overall population is not much different than many other times throughout our history. Today immigrants make up approximately13% of the total U.S. population. From 1900 to 1930, immigrants made up between 12% and 15% of the population, and similar spikes occurred in the 1850s and 1880s.
In 2014 there were approximately 11.3 million undocumented immigrants living and working in the U.S., which is actually a significant decrease from the 12.2 million undocumented immigrants in the U.S. in 2007. Today, in fact, the net migration from Mexico (the number of people entering the U.S. from Mexico minus the number of people leaving the U.S. to go to Mexico) is around zero. Undocumented immigrants make up about 3.5 percent of the nation’s total population.
Studies have consistently found that immigrants are less likely to be incarcerated than native-born Americans and that there was no correlation between crime rates and levels of immigration. Other studies have in fact found that crime rates are lowest in states with the highest immigration growth rates.
In fact, immigrants are twice as likely to start businesses as citizens born in the U.S., and companies owned by immigrants are more likely to hire employees than companies owned by native-born citizens. States with large numbers of immigrants report lower unemployment for everyone.
Immigrants collectively pay between $90 and $140 billion each year in taxes, and a recent study found that undocumented immigrants alone paid more than $11.8 billion in taxes in 2012. Everyone pays sales taxes on goods they purchase and property taxes on the homes they buy or rent, and more than half of all undocumented immigrant households file income tax returns using Individual Tax Identification Numbers.
With very few exceptions (such as access to medical care for victims of human trafficking), undocumented immigrants are not eligible for federal public benefits such as Social Security, Medicaid, Medicare and food stamps. In addition, most immigrants with lawful status are not entitled to these benefits until they have been in the country for five years or longer. This means that Social Security is often being deducted from immigrants’ paychecks but they cannot access those benefits.
Although people have claimed that undocumented immigrants have brought diseases to the U.S., including measles, hepatitis C, HIV, tuberculosis, and even ebola, the allegations are not supported by science or medicine. There is no evidence that immigrants have been the source of any modern outbreaks in the U.S. According to the World Health Organization, 113 countries, including many countries in Latin America, have higher vaccination rates for 1-year-olds than the U.S.
According to a 2015 report by the U.S Department of State, Bureau of Counterterrorism, “there are no known international terrorist organizations operating in Mexico, despite several erroneous reports to the contrary during 2014.” In fact, the vast majority of U.S. residents linked to terror since 2002 are U.S. citizens.
Although many people commonly think of undocumented immigrants as people who have snuck across the Mexican border, somewhere between one third and one half of undocumented immigrants in the U.S. have overstayed their visitor, student, or work visas. That means that they entered the U.S. with lawful documentation and only later became undocumented.
A wall or a fence along the entire border with Mexico would be impractical and very likely ineffective. The border between the U.S. and Mexico is almost 2,000 miles long. It spans difficult terrain, including deserts and mountains. Rivers flow along two thirds of the border. Much of the area is private property, which the government would have to buy from the owners to build a fence or wall, and many do not want to sell the land. The logistics alone make building a wall very difficult, if not impossible.