I don't have any handy stats on that --- but massive migration of people out of Mexico is actually making things worse in Mexico. Abandoned women and children --- children raised without parents, villages where virturlly all the working age have left and all that remains are the very old and very young.
Mexico has a tremendous problem with abandoned children living in the streets of all it's cities and most of it's towns. It's imploding --- and we might think we're preventing problems with allowing unlimited numbers to come here but it's really just making things worse. Massive migration of people results from instability but it leads to more instability --- and it's the injustice in Mexico that is driving this.
Sounds like Africa and HIV.
You've got to be careful when you talk about "injustice".
Some people use that word to mean workers should all be given a good wage, a health plan, worker's compensation, unemployment insurance and a 3 week vacation for a 40 hour week.
And you end up driving all the employers out of business.
People get the government they tolerate. Ultimately it's up to the people to correct the problem. They are not victims of their government; they are enablers of their government because they fall for the horse pucky that the government should "give" them all this stuff.
And then the "government" ends up with all the guns and the vote counters, and makes it really hard to change things.
Maybe that one poster is right. After the bracero program ended and all those workers exposed to American Way went home, things got better in Mexico for a while.
I wish we weren't heading for that same tolerance of corruption here. The State of Washington has me worried. As Stalin said (paraphrased), you don't need to win the votes, only the power to count the votes.