The Problem with Immigration Laws

All of the branches of my family were in the Americas before there was a United States of America.  I'm not bragging, I'm just explaining our limited experience with immigration laws.  Oh, there was one exception:  my mother's people crossed into Texas illegally as early as 1807.  They didn't speak Spanish, weren't Catholic, and didn't have permission from the Spanish government of Texas, or from its successor, the Republic of Mexico.  They ended up rebelling against the lawful government and oppressing the Spanish speaking earlier inhabitants.  If turn about is fair play, no wonder my cousins in Texas and Louisiana are worried about the influx of Mexicans coming into the country.