It does not require a lot of intelligence or education to climb into the trunk of a car in Tijuana and get smuggled into the USA. On the other hand, if somebody wants to emigrate to the USA from Asia or Africa they need more smarts in order to get here.
“On the other hand, if somebody wants to emigrate to the USA from Asia or Africa they need more smarts in order to get here.”
Yeah, they need to fly to Canada.