Border states aren't the only ones with illegal immigrants in them. Any state that has hand-picked agricultural products will have illegal immigrants because the corporations hire them "under the table" for sub-legal wages. Because they can, and because they know the illegals can't complain about it or they'll be deported. If they didn't your food would cost twice what it does now.

It's always sweet when vocal anti-immigration fatcats are caught with illegal household workers. Do as they say, not as they do.

There is no population problem. The US barely has sustainability WITH immigration. No other first-world nation has sustainability. Overpopulation is a third-world problem, and doesn't directly affect the US at all.