I guess it is time I consider moving inti the US!!! If English is not a problem I could use my Spanish to secure a job.
Now seriously, we also have a lot of inmigration here in Spain and some people find it easier to live within their "cultural bubble" than adapting to their new country customs. The only difference is that here in Spain, South American inmigrants happen to know Spanish.
This problem will grow in the future because inmigrants tend to have more children than locals.