Most people that I talk to in Mexico have a relative in the US. The most common answer of those who decide to stay in Mexico is that they don't want to live like a criminal committing an illegal act. That means that those that come here illegally are NOT typical Mexicans. The vast majority of people in Mexico are courteous, law-abiding and motivated. A Trump visit to Mexico while recognizing that those who come to the US illegally are atypical and not in a good way. Such a visit would boldly illustrate that Trump doesn't hold the prejudices that he's accused of.