This is a big problem with people "voting with their feet." And it applies both the migrants between states and immigrants coming into the U.S.
People in California and Mexico know that things suck where they live and that things are better elsewhere. But they have no clue WHY things are that way.
You know why things suck in Mexico? Mexicans. You know why things suck in California? Californians.
Unfortunately people are least likely to see themselves as being the problem. They don't realize the socialist/statist policies they support cause misery and that the free market causes prosperity.
So when they arrive at their new homes they vote for the politicans who promise them the biggest government goodies. They don't realize they are importing the exactly kind of policies the wrecked where they came from.
we're getting them in VA, too :(