I don't think they come here because of the plumbing. Unsafe water isn't so good. I mentioned corruption. Many of them seem to live in shanties with no screens or windows, just a hole. I just wonder if they know how much more everything costs here relative to the low wages they are willing to work for. Somehow they seem to manage. They keep coming. Something else is driving this besides just the "American dream."
I mentioned plumbing, because it is a convenience, and who wouldn't be for another convenience. They know that the cost of living is higher here, but come anyway, because the quality of life is better. The wages may be low, but when there are more than the lawful occupancy sharing the rent, it doesn't mean much. They can still party. And we keep making it easier for them. Credit cards, bank accounts, free wire transfers, mortgages, car loans, translators, education for their kids, health care, etc. all in Spanish.