Right, let's build a wall for a majority of illegal migrants who migrate using a work visa, and overstay it. Research, why doesn't anybody in the alt-right do it?
If it doesn't fit their wildly partisan world view they won't countenance it. Denigrating the news media and promoting spurious "alternative facts" makes them feel reassured. Having a President that appears unable to develop a coherent intellectual strategy on any issue doesn't help.
ILLEGAL IMMIGRANTS COST US TAXPAYERS $115 BILLION DOLLARS YEARLY; BUILD THE DAMN WALL FOR THE $20 BILLION AND USE THE REST FOR SECURITY IN OUR SCHOOLS.