Run the numbers on the five bluest states. No matter what definition of "bluest" you use you'll get mine in there somewhere.
You'll never see the issue unless you actually look at nation of origin stats, which are not collected by much of anybody. These people have all been issued state IDs and are state residents as far as the state government cares. But ask any social worker, any administrator, and they will tell you that the demographics being served have changed hugely over the years.
I have people that work for these agencies in my household. I'm not shooting from the hip here.