You have no idea what this man is really up to. Imagine Mussolini in a business suit. Fascist.
As for the wall, go ahead, build it. Mexico will raise her prices for tourism to pay for it. No more cheap Mexican labor to build lavish American homes in Mexico. US controls 70% of Mexican economy. With the wall and limiting American factories there, Mexico can be released slowly from American death grip and eventually stand on her own. NAFTA is a disaster for Mexico. When first passed, American corn growers dumped tons of cheap American corn on their market, driving Indio farmers out of business, displacing over 2 million Mexican workers who headed north to the US to look for work. Monsanto Corp. created 'killer seeds' which destroyed some 18 different native corn varieties in Mexico, further driving Mexican corn growers out of the market, and then replaced these varieties with their own patented hybridized seeds. NAFTA allowed the Mexican government to take homestead land away from indigenous Mayan Indians and begin selling it to rich American corporations. So American involvement in Mexico is not so desirable. It is an octopus. Mexico would have a very difficult time recuperating, but it can do it over the long run.