Pouring resources into solutions that won't work

The Human Development Report has created a Human Development Index that measures several factors related to how well people are doing economically. They created a map showing the HDI of all of the US counties and their Mexican equivalents along the border. The lowest score on the US side is 0.766, the highest score on the Mexican side is .757. Of course, there is going to be migration across that border and no amount of "strengthening the border" is going to stop the flow. What will work is economic development on the Mexican side (with some help with the drug war). I've heard economists say that helping raise the Mexicans out of poverty so they want to stay in Mexico is probably cheaper than all of our valiant and futile efforts to keep them from crossing the border. It would even more closely follow the teachings of Jesus. Alas, we're not even interested in helping the economically displaced in our own country.