Don't forget we need a wall on the north border too! Canadians move to the USA, so then Canada back fills their population with MUSLIMS. Then Muslims just walk across the northern border, and set up housekeeping in the USA, which has always been their ultimate destination.  Canada has always been just stepping stone to the USA.  That is WHY so many STATES Bordering Canada have turned BLUE and are LOADED with MUSLIMS (former Canadians).