Chinese Concubines
A little research:
The first federal immigration law was the Page Law in 1875 which was written primarily to prevent polygamy among Chinese immigrants, a law adopted from California where men had been sending to China for second wives and concubines.
For the previous 400 years of foreign migration to North America there were no immigration laws.
The more recent push for laws limiting immigration have been in response to the heavy burden these immigrants have been imposing on the welfare state.
Well, duh. By creating a welfare state you create an incentive for people to free ride, and if it is possible to migrant into such a situation people will do so.
So: get rid of those social programs.
