We've all heard the snowflake lies about the cost of the wall and the cost of illegal immigration. Here's a more credible examination of the facts. Trump's Wall Costs $21.6 Billion; Illegal Immigration Costs $148.3 Billion Per Year—Do The Math | National Economics Editorial President Donald Trump announced that he will fulfill his campaign promise to build a nearly 2,000 mile long wall (not a fence) along America’s southern border with Mexico. The idea is that a physical barrier will act as a low-cost deterrent, and will help stem the flow of illegal immigrants entering America via Mexico—the hope is that once an illegal alien (particularly a criminal migrant) is deported, they won’t return. The plan is simple and time-tested—China’s Great Wall did it’s job, so did Hadrian’s Wall in Roman Britain—and yet it’s come under fire from the mainstream media. They claim that the wall will be prohibitively expensive, that illegal immigrants contribute to America’s economy (so there’s no reason to deport them), and that the wall won’t work. They’re factually wrong on all accounts—let’s look at the numbers. How Much Will Trump’s Wall Cost? $21.6 Billion. The first question we must address is very straightforward: how much would it cost to build a wall along the Mexican border? We don’t know for sure (construction costs rarely align with initial estimates), but we have a few good estimates. Senate leader Mitch McConnell said Congress estimates the wall will cost $15 billion at most—he said it would likely fall within a range of $12 to $15 billion. However, according to more recent information acquired by Reuters, the border wall will cost $21.6 billion, and will take roughly 3.5 years to build. This is according to a document from the Department of Homeland Security. It’s probably our best current estimate, and this article will proceed under using this cost assumption. On the high end (which can’t be totally discounted, given the nature of construction projects), the left-wing advocacy group cum “newspaper” the Huffington Post said the wall would cost roughly $40 billion. Their evidence is based on a study done by MIT (although their assumptions about the size and building materials may be why the projection is so high). Either way, the cost of the wall pales in comparison to the cost of illegal immigrants in America. . . . . . . . .