Facilitating migration makes it harder to fix the countries they are leaving

Roger L. Simon:

If you sought to preserve the violent, reactionary and undemocratic regimes of countries like El Salvador and Honduras -- and, to a great extent, Mexico -- into perpetuity, how would you do it?

One way would be by providing a permanent U.S. safety valve for all their poor and downtrodden, the victims.

Just as with Europe and the Middle East, open borders can salve the soul and make us all feel good about ourselves, but they come with a price. And that price is not just for the richer host countries in supplying costly services. It is even greater for the countries of origin whose benighted citizens, the stay behinds, are left to suffer under governments that are incompetent, corrupt and often murderous.

Meanwhile, many of their good people (yes, along with some of the bad) are leaving or have left. It would have been those people, working together, that might have fixed their countries. No chance now.
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There is little serious discussion about the issue because I don't think Democrats want to fix the real problem.  They want to import voters for a culture of dependency.