There's a reality here that's being ignored.
"Douglas S. Massey" is an American Sociology/sociologist. Massey is currently a professor of Sociology at the Woodrow Wilson School of Public and International Affairs at Princeton University and is an adjunct professor of Sociology at the University of Pennsylvania. Massey specializes in the sociology of immigration, and has written on the effect of residential segregation on the black underclass in the United States.More Douglas Massey on Wikipedia.
What happens in Jamaica today is that the elites stay because they have the power. It's the upwardly mobile and aspiring professional classes that leave.
The U.S. wants the labor, but doesn't want to address the risks people take to get here.
It's all part of the process of immigration. It's a wave of technology that's enabled immigrants to continue to play a more direct role in the lives of their families at home.
Almost everybody gets in. It's just a matter of how many times it takes.