MIKEY - "Whenever I have been in California, its was pretty obvious that the State would collapse overnight, without the Mexican workers contribution."
Indeed.
Mr Trump's over-simplistic notion of 'building a wall' is designed to appeal to people who like to believe that complex issues have simple solutions.
Either Mr Trump is that naïve that he really believes that a wall is a viable solution to the issues he highlights - which I seriously doubt - or he is shrewd enough to know that there is a massive Republican voting electorate out there with whom his option - laughably impractical is it is - will chime loud and long.