Any city with large number of illegal aliens is pretty much all 3rd world cesspools. It is bound to happen when these communities allow and even encourage large scale immigration of ignorant, uneducated, and unassimulated people.
The movie “Elysium” was not great overall, but I think it was pretty accurate in its depiction of where LA is going as a city. The interesting thing is that the movie shows that the Elite know this, but their Political Correctness keep encouraging the policies that fulfill the prophesy.
It is both LEGAL immigrants and illegal aliens that are changing the culture and values of LA.