Translation of inmigración

I understood that this was a real problem in this country and many foreigners came for sex tourism. Many bad stories had happened but my hosts were decent people. I could tell that right away.
Moreover, these conception goes with generations, it is almost biologically inherited, they are path from parent to child. As a result the a child has similar believes as his father or mother.
I rarely heard someone speaking so bad about his nation, but again, it wasn't my business. We closed the lights at midnight and hoped for a few hours of sleep. The train shaked and threw us around in our beds.