It seems to me to be a method of making people different. If they are different we NEED to keep them out. They aren't different, they are precisely the same. In all aspects.
I didn't mention the deaths. As crossing gets harder a higher percentage die in the desert. Men, women, children. And still they come.
It is sad. From all perspectives.
That is a tragic circumstance of economic disparity and economic design I believe. Very sad to see the loss of human life a result of motivation to create a better life.