At some point intelligent people should ask themselves a question along the following lines:

What role in their country did these mobile-enough, able bodied, enterprising immigrants have?

Isn't the US just skimming off the top, benefiting from these immigrants?

What could MOST of them have done FOR THEIR OWN COUNTRYMEN back home?

Build businesses?
Raise families, that in turn serve the neighborhood?
Teach others?
Care for others?

Instead we encourage "skimming" without giving one single thought to what these people could have done back home.

We're just skimmers, but pontificating ones.