Why might closing the border not be a good idea, or building a bigger wall be misleading the public?

Closing the border could be a bad idea, because not many people realize that Mexican people actually make up more of our population than anyone wants to admit. So if we closed our border and/or made the wall higher, than the Mexican people wouldn't make their way in here. Some people think that's good, but actually Mexicans run a lot of businesses and bakeries that we shop at daily.

every four years the american people choose a new president, and 1988 is one of those years."