No, because you would have to make major cuts in all agencies which makes us vunerable as a country. Some of our departments already are way underfunded. Why would anyone want to go into an essentially broke country with major money problems if we build the wall. Plus border patrol would need more officers keeping a watchful eye over the wall, but in very hot conditions in the southwest it would be horrible to work under. The Mexicans will be infuriated with the U.S, and will stop most trade agreements with the U.S if possible. Plus it would take awhile to even built the wall, about two decades will be how long it would take in the best case scenario. Furthermore think about the costs it would take mantaining the wall for the years after it was built. Finally on America's principals which says we aren't discriminative and welcomes all human beings, what type of message do you think you'd send if you would do this?