One of the current political hot buttons, not just in the U.S., is illegal immigration.
It may not be readily apparent to some, but mass movements of population groups have been going on for thousands of years. Of course, then they were call invasions. The concept of immigration seems to be a more modern one.
Invasion is generally regarded as a violent, chaotic process; in established nations, immigration is seen as more controlled and orderly. But the lines appear to be fading between the two.
In Europe, many eastern Europeans and Middle Easterners have taken residence in north and western Europe where economic opportunity seems greater. Some come legally; some not. Many attempt to fit into their new societies; others not only resist, but actively reject the values and traditions of their new homes. The result is increasing tension about and activism against recent immigrants.
The N.Y. Times reports that Texas lawmakers want to push through bills that "would deny public assistance and other benefits to the children of illegal immigrants, tax money transfers to Mexico and the rest of Latin America and sue the federal government for the costs of state border control." In the U.S., more than 1 of every 3 immigrants is "illegal."
It appears that while resistence to change may be unreasonable at times, resistence to chaotic change may be reasonable and necessary... especially in the eyes of those who end up paying for the chaos. There appears to be a flip side to "cheap labor." The issue is what is a reasonable and necessary response. It looks as if Texas might become a testing ground.