Guatemalans admit they're illegally entering the US to get bigger houses, not flee violence...
[thefederalist.com]
Regardless, every sovereign nation has a responsibility to protect itself from invasion and sedition by deliberately rigorous screening and control of the flow of immigrants REGARDLESS of their motivation for entry. There are times when a nation MUST completely stop immigration, and times to allow limited immigration. Read “A Nation of Immigrants” by John F. Kennedy.