Democrats understandably tend to shun these valid but hard-hearted arguments. Instead they insist vehemently that a wall, which many supported a dozen years ago, will inevitably be ineffective and must be regarded as “immoral.”

This first argument flies in the face of evidence. As American Enterprise institute’s Michael Rubin pointed out in 2017, Israel’s wall with the West Bank, Morocco’s wall with Algeria, India’s with Bangladesh, Hungary’s with Serbia and others have reduced illegal crossings to near zero. To the point that this year, Rubin reports France, Iraq, Lithuania, Estonia and Norway are putting up walls. “It is simply counterfactual to suggest that walls won’t work,” he writes, “willful subordination of facts to the politics of the day.”

And why are walls immoral? Rep. Eric Swalwell, D-Calif., recognizes the “Berlin Wall was to keep people in” argument, but insists a wall to keep people out is “medieval” and “a symbol of ‘us and not us.’” Well, yes—U.S. citizens and not U.S. citizens.